Google has a very large team of search quality raters that evaluate the quality of search results, that gets fed into a machine learning algorithm. Google’s search quality rater guidelines provide plenty of detail and examples of what Google class as high or low quality content and websites, and their emphasis on wanting to reward sites that clearly show their expertise, authority and trust (EAT).
In some contexts, the term SEM is used exclusively to mean pay per click advertising,[2] particularly in the commercial advertising and marketing communities which have a vested interest in this narrow definition. Such usage excludes the wider search marketing community that is engaged in other forms of SEM such as search engine optimization and search retargeting.
One common scam is the creation of "shadow" domains that funnel users to a site by using deceptive redirects. These shadow domains often will be owned by the SEO who claims to be working on a client's behalf. However, if the relationship sours, the SEO may point the domain to a different site, or even to a competitor's domain. If that happens, the client has paid to develop a competing site owned entirely by the SEO.
Another good news is that your videos don’t have to be perfect. It’s the content that matters! Latest research shows that users are mostly put off by videos that don’t explain the product or service clearly enough. Low quality and poor design didn’t matter nearly as much. So it’s fair to say that video is like pizza – when it’s bad, it’s still pretty good!

Within your channel itself, you can also organize videos into playlists, making it easy for your audience to search within your content. As a social platform, viewers can engage with your videos by liking and commenting on them, providing you another chance to interact with your audience. YouTube also offers a variety of advertising options for more sophisticated targeting.
That doesn't mean you won't make any money at the outset. No, as long as you configure the right free offer to capture those all-important email addresses on your squeeze pages, and you build a great value chain with excellent sales funnels, you'll succeed. If all that sounds confusing to you, don't worry, you'll learn over time. That's what internet marketing is all about. It's a constant and never-ending education into an oftentimes-convoluted field filled with less-than-scrupulous individuals.
If you're not using internet marketing to market your business you should be. An online presence is crucial to helping potential clients and customer find your business - even if your business is small and local. (In 2017, one third of all mobile searches were local and local search was growing 50% faster than mobile searches overall.) Online is where the eyeballs are so that's where your business needs to be. 
Choosing the right keywords, for example, takes a thorough understanding of a business’ goals and objectives—it’s easy to spend a lot of energy aiming ads at the wrong people. That isn’t to say a good campaign will be optimized from day one, either. Running a PPC campaign takes a lot of time, refining keywords, groupings, tweaking ad copy, revising the landing page, and monitoring results.
Shifting the focus to the time span, we may need to measure some "Interim Metrics", which give us some insight during the journey itself, as well as we need to measure some "Final Metrics" at the end of the journey to inform use if the overall initiative was successful or not. As an example, most of social media metrics and indicators such as likes, shares and engagement comments may be classified as interim metrics while the final increase/decrease in sales volume is clearly from the final category.
Hi, thanks for a great blog. In our office we have a debate going on about whether all of this video hype that we’re experiencing from basically everywhere today is really just, well, a hype.. In line with more and more companies using video marketing, text as we know it might fade out, pictures as we know them might fade out, but if everybody starts using video, what will then happen? Today, video is commonly seen as a way to stand out and capture users’ attention, but what if every brand start publishing video solely? Will we still want to see as much video? Will we need to capture the viewers’ attention in 2 seconds instead of 10? What do you think it requires for companies to succeed with videos and stay on top if everybody else is doing the same?

Content is king. It always has been and it always will be. Creating insightful, engaging and unique content should be at the heart of any online marketing strategy. Too often, people simply don't obey this rule. The problem? This takes an extraordinary amount of work. However, anyone that tells you that content isn't important, is not being fully transparent with you. You cannot excel in marketing anything on the internet without having quality content.
There is limited real estate for the top positions in organic search results. With the amount of content on the web today and the number of competitors you have, it can be hard to get in a top position, even despite your best efforts. If you’re a new business or an existing one trying to build your online presence, SEM/PPC advertising can get you in front of highly targeted customers.
A purchase may have been made, but there’s still a lot video can do to leverage the post-conversion stage of your flywheel. During the "delight stage" of the inbound methodology, your goal is to continue providing remarkable content to users that makes their interaction with your product or service as incredible as possible. It's also in hopes that they’ll tell their connections about their experience or up-sell themselves. Therefore, the goal of this type of video is encourage your customers to embrace your brand and become brand evangelists.

On the other hand, a website can have a fantastic paid search strategy in place and experience short-term gains in traffic and click-through rates (CTR) while missing SEO optimization completely. In this case, growth will be fast and visitors/clicks will be generated through a more diverse set of keywords—but it may cost quite a bit of money that would be more effective elsewhere.
For example: If you sell household electronics and your paid ad promotes your selection of noise-cancelling headphones, your landing page should feature your noise-cancelling headphones. Directing people to your homepage instead, where they’ll need to sift through your product categories or do another search, will lead to frustration and a poor chance of getting the sale.
Paid search advertising focuses on investing in the right types of ads to achieve prominent positions on search engine results pages and drive traffic to the site. Well optimized search ads can sometimes achieve higher positions than organic search results, while others might be displayed on the right side of the browser page. The success of paid search campaign rests on targeting the right keywords and selecting optimal advertising channels.
You’ve launched an amazing product or service. Now what? Now, you need to get the word out. When done well, good PR can be much more effective and less expensive than advertising. Regardless of whether you want to hire a fancy agency or awesome consultant, make sure that you know what you’re doing and what types of ROI to expect. Relationships are the heart and soul of PR. This chapter will teach you how to ignore the noise and focus on substantive, measurable results.
Why It Worked So Well: It was the first of its kind, a reality show using the Google Glass. I became a Google Glass Explorer in July of 2013 and tried to think of strategies to use Glass to promote our clients at HJMT Public Relations, Inc. Through Glass, you can watch me scramble as my life takes unexpected twists and turns and see how I navigate through the life of being a small business owner. Glasslandia is a work of art that we pieced together using real video from a production company and video produced through Glass. Glasslandia shared a different point of view.

SEO is an effective tool for improving the volume and quality of traffic to your website. Visitors are more likely to click on free organic listings than on paid listings. Our SEO strategies apply only the best and most current practices that focus on the use of great content development, content marketing, social media. All of these strategies combined result in the most effective use of best practices that drive long term ROI.

As of October 2018 almost 4.2 billion people were active internet users and 3.4 billion were social media users (Statista). China, India and the United States rank ahead all other countries in terms of internet users. This gives a marketer an unprecedented number of customers to reach with product and service offerings, available 24 hours a day, seven days a week. The interactive nature of the internet facilitates immediate communication between businesses and consumers, allowing businesses to respond quickly to the needs of consumers and changes in the marketplace.


Link text is the visible text inside a link. This text tells users and Google something about the page you're linking to. Links on your page may be internal—pointing to other pages on your site—or external—leading to content on other sites. In either of these cases, the better your anchor text is, the easier it is for users to navigate and for Google to understand what the page you're linking to is about.
Was reviewing some competitive data and thought this was pretty interesting. I ran a batch analysis on Ahrefs of competitors. See attached screenshot. With just 603 backlinks, Our site is ranking up there with sites with 2x, 3x, 10x the number of backlinks/unique ips. Guessing some of this authority is coming from the backlinks program and general good quality of those links. Hard to speculate but nice to see. Ben R.

The definition of video marketing is not complex. In fact, it’s rather simple: using video to promote or market your brand, product or service. A strong marketing campaign incorporates video into the mix. Customer testimonials, videos from live events, how-to videos, explainer videos, corporate training videos, viral (entertainment) videos — the list goes on. https://www.youtube.com/watch?v=e29F5n3ea0I

SEM is not a camera and the detector is not continuously image-forming like a CCD array or film. Unlike in an optical system, the resolution is not limited by the diffraction limit, fineness of lenses or mirrors or detector array resolution. The focusing optics can be large and coarse, and the SE detector is fist-sized and simply detects current. Instead, the spatial resolution of the SEM depends on the size of the electron spot, which in turn depends on both the wavelength of the electrons and the electron-optical system that produces the scanning beam. The resolution is also limited by the size of the interaction volume, the volume of specimen material that interacts with the electron beam. The spot size and the interaction volume are both large compared to the distances between atoms, so the resolution of the SEM is not high enough to image individual atoms, as is possible with transmission electron microscope (TEM). The SEM has compensating advantages, though, including the ability to image a comparatively large area of the specimen; the ability to image bulk materials (not just thin films or foils); and the variety of analytical modes available for measuring the composition and properties of the specimen. Depending on the instrument, the resolution can fall somewhere between less than 1 nm and 20 nm. As of 2009, The world's highest resolution conventional (≤30 kV) SEM can reach a point resolution of 0.4 nm using a secondary electron detector.[30] https://youtube.com/watch?v=e29F5n3ea0I&app=desktop


Google's search engine marketing is one of the western world's marketing leaders, while its search engine marketing is its biggest source of profit.[17] Google's search engine providers are clearly ahead of the Yahoo and Bing network. The display of unknown search results is free, while advertisers are willing to pay for each click of the ad in the sponsored search results.
Marketers understand that this "hunt mode" means that the searcher may very well be at the beginning, middle, or end stages of the buying cycle. When someone is researching a product or service to satisfy an immediate or future need they are in an unusual state: they desire relevant information and are open to digesting and acting on the information at their fingertips, all made possible by a search engine. This makes search engine results some of the best sources of targeted traffic, whether this traffic originates from "organic" unpaid search listings or paid advertising listings.
I first discovered Sharpe years ago online. His story was one of the most sincere and intriguing tales that any one individual could convey. It was real. It was heartfelt. It was passionate. And it was a story of rockbottom failure. It encompassed a journey that mentally, emotionally and spiritually crippled him in the early years of his life. As someone who left home at the age of 14, had a child at 16, became addicted to heroin at 20 and clean four long years later, the cards were definitely stacked up against him. http://www.youtube.com/v/e29F5n3ea0I&feature=youtu.be
3. General on-site optimization. On-site optimization is a collection of tactics, most of which are simple to implement, geared toward making your website more visible and indexable to search engines. These tactics include things like optimizing your titles and meta descriptions to include some of your target keywords, ensuring your site’s code is clean and minimal, and providing ample, relevant content on every page. I’ve got a huge list of on-site SEO tactics you can check out here.
For any "attract" video, avoid speaking too much about your product. Instead, let your brand values and personality be your north star(s). Finally, because these videos can live on a variety of channels, keep in mind the strategies of each platform. For example, a Facebook video might have a square aspect ratio and text animations for soundless viewers.  http://www.youtube.com/watch?feature=youtube.be&v=7bNPg8UbhaE
You should optimize your site to serve your users' needs. One of those users is a search engine, which helps other users discover your content. Search Engine Optimization is about helping search engines understand and present content. Your site may be smaller or larger than our example site and offer vastly different content, but the optimization topics we discuss below should apply to sites of all sizes and types. We hope our guide gives you some fresh ideas on how to improve your website, and we'd love to hear your questions, feedback, and success stories in the Google Webmaster Help Forum1. https://www.youtube.com/watch?feature=youtu.be&v=e29F5n3ea0I
There’s obviously a huge number of reasons why a website might link to another and not all of them fit into the categories above. A good rule of thumb on whether a link is valuable is to consider the quality of referral traffic (visitors that might click on the link to visit your website). If the site won’t send any visitors, or the audience is completely unrelated and irrelevant, then it might not really be a link that’s worth pursuing.
You may be wondering, why pay to show up in search engines and have people click on your website pages? Can’t you just improve your website’s SEO and get online visibility and organic clicks for free? The answer is that organic search isn’t actually free. SEO strategies are very beneficial to your business, but SEO takes time to take effect, (up to 6 months) and the tactics involve a lot of work toward producing quality content. With SEM/pay-per-click advertising, you see results right away, in the form of your business name on page one of a search.
SEO is an acronym for "search engine optimization" or "search engine optimizer." Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation. Make sure to research the potential advantages as well as the damage that an irresponsible SEO can do to your site. Many SEOs and other agencies and consultants provide useful services for website owners, including:
6. Measurement and analysis. You won’t get far in SEO unless you know how to measure your results, interpret those results, and use your analysis to make meaningful changes to your approach. The best tool for the job is still Google Analytics, especially if you’re new to the game. Spend some time experimenting with different metrics and reports, and read up on Analytics knowledge base articles. There’s a deep world to dive into. https://www.youtube.com/watch?feature=youtube_gdata&v=e29F5n3ea0I
Multi-Resolution reconstruction using single 2D File: High-quality 3D imaging may be an ultimate solution for revealing the complexities of any porous media, but acquiring them is costly and time consuming. High-quality 2D SEM images, on the other hand, are widely available. Recently, a novel three-step, multiscale, multiresolution reconstruction method is presented that directly uses 2D images in order to develop 3D models. This method, based on a Shannon Entropy and conditional simulation, can be used for most of the available stationary materials and can build various stochastic 3D models just using a few thin sections.[56]
Cathodoluminescence, the emission of light when atoms excited by high-energy electrons return to their ground state, is analogous to UV-induced fluorescence, and some materials such as zinc sulfide and some fluorescent dyes, exhibit both phenomena. Over the last decades, cathodoluminescence was most commonly experienced as the light emission from the inner surface of the cathode ray tube in television sets and computer CRT monitors. In the SEM, CL detectors either collect all light emitted by the specimen or can analyse the wavelengths emitted by the specimen and display an emission spectrum or an image of the distribution of cathodoluminescence emitted by the specimen in real color.
Page and Brin founded Google in 1998.[22] Google attracted a loyal following among the growing number of Internet users, who liked its simple design.[23] Off-page factors (such as PageRank and hyperlink analysis) were considered as well as on-page factors (such as keyword frequency, meta tags, headings, links and site structure) to enable Google to avoid the kind of manipulation seen in search engines that only considered on-page factors for their rankings. Although PageRank was more difficult to game, webmasters had already developed link building tools and schemes to influence the Inktomi search engine, and these methods proved similarly applicable to gaming PageRank. Many sites focused on exchanging, buying, and selling links, often on a massive scale. Some of these schemes, or link farms, involved the creation of thousands of sites for the sole purpose of link spamming.[24]
As the number of sites on the Web increased in the mid-to-late 1990s, search engines started appearing to help people find information quickly. Search engines developed business models to finance their services, such as pay per click programs offered by Open Text[7] in 1996 and then Goto.com[8] in 1998. Goto.com later changed its name[9] to Overture in 2001, was purchased by Yahoo! in 2003, and now offers paid search opportunities for advertisers through Yahoo! Search Marketing. Google also began to offer advertisements on search results pages in 2000 through the Google AdWords program. By 2007, pay-per-click programs proved to be primary moneymakers[10] for search engines. In a market dominated by Google, in 2009 Yahoo! and Microsoft announced the intention to forge an alliance. The Yahoo! & Microsoft Search Alliance eventually received approval from regulators in the US and Europe in February 2010.[11]
Search engine marketing is the practice of marketing a business using paid advertisements that appear on search engine results pages (or SERPs). Advertisers bid on keywords that users of services such as Google and Bing might enter when looking for certain products or services, which gives the advertiser the opportunity for their ads to appear alongside results for those search queries.
For content to stand out, businesses must differentiate their material from other companies, especially competitors. Some methods that have worked are innovative series that develop fictional characters or storylines centered around a specific product. Other campaigns serve essentially as commercials for a business, such as Red Bull’s campaign that features extreme sports athletes, or serve as how-to’s that establish thought leadership.
The goal of SEO is to get a web page high search engine ranking. The better a web page's search engine optimization, the higher a ranking it will achieve in search result listings. (Note that SEO is not the only factor that determines search engine page ranks.) This is especially critical because most people who use search engines only look at the first page or two of the search results, so for a page to get high traffic from a search engine, it has to be listed on those first two pages, and the higher the rank, the closer a page is to the number one listing, the better.  And whatever your web page's rank is, you want your website to be listed before your competitor's websites if your business is selling products or services over the internet.
In the following sections, we’ll cover the types of videos you should create for each stage in the image above. To start, plan to create at least two videos for each. Don’t forget to include call-to-actions to help lead your audience through their purchase journey and into the role of "promoter." Over time, you can improve based on conversion rates and the content gaps you discover.
What does aperture mean for your video? When a lot of light comes into the camera (with a low f-stop number), you get a brighter image and a shallow depth of field. This is great for when you want your subject to stand out against a background. When less light comes into the camera (with a high f-stop number), you get what’s called deep depth of field and are able to maintain focus across a larger portion of your frame.
Being a leading data-driven agency, we are passionate about the use of data for designing the ideal marketing mix for each client and then of course optimization towards specific ROI metrics. Online marketing with its promise of total measurement and complete transparency has grown at a fast clip over the years. With the numerous advertising channels available online and offline it makes attributing success to the correct campaigns very difficult. Data science is the core of every campaign we build and every goal we collectively set with clients.
However, with all of these so-called modern conveniences to life, where technology's ever-pervading presence has improved even the most basic tasks for us such as hailing a ride or ordering food or conducting any sort of commerce instantly and efficiently, many are left in the dark. While all of us have become self-professed experts at consuming content and utilizing a variety of tools freely available to search and seek out information, we're effectively drowning in a sea of digital overload.

My favorite style in this is article marketing. You create anchor content on your website or blog, then you build authority-content links to that content, effectively driving up the visibility. I've used this single strategy to rank hundreds of keywords in the #1 spot on Google, and I would highly recommend that if you're going to learn any marketing strategy, that you get really good at this one.

Social Media Marketing (SMM): Focuses on branding, reputation enhancement and enhanced customer service via social networks like Facebook, Twitter, YouTube and LinkedIn. Smaller SMM channels include Digg, Delicious, Wikipedia, StumbleUpon and MySpace. Social networks are visited by a collective total of over one-billion people. Thus, even the simplest marketing efforts, like paid advertising, reach potentially large audiences.

Display advertising - As the term infers, Online Display Advertisement deals with showcasing promotional messages or ideas to the consumer on the internet. This includes a wide range of advertisements like advertising blogs, networks, interstitial ads, contextual data, ads on the search engines, classified or dynamic advertisement etc. The method can target specific audience tuning in from different types of locals to view a particular advertisement, the variations can be found as the most productive element of this method. http://m.www.youtube.com/watch?feature=player_embedded&v=e29F5n3ea0I
When running PPC ads, it's important that you keep careful track of the specific ads and keywords that you're targeting. You can do this by using the Google Analytics UTM builder to create campaign URLs that you can use to track the campaign source, the medium and any keywords or terms that you might be targeting. This way, you can determine the effectiveness of any campaign that you run and figure out the precise conversion rate.
The course work of a marketing program will consist of real-world and hands-on components, such as case studies of both successful and failed marketing campaigns, and simulated businesses marketed by students using the concepts they have learned. This will include diving into several computer programs like Adobe InDesign and Dreamweaver, as well as both free and proprietary website analytics software.
The largest search engines, Google, Bing and Yahoo, each have fairly simple programs to get started. You determine the key words or search phrase as well as the amount you are willing to spend (per click and/or per day). Most of them offer simple programs that require filling out a form and putting a certain amount of money down as credit. Like anything new, start small with paid SEM and add complexity (and budget) as you learn more and see results over time.
Users will occasionally come to a page that doesn't exist on your site, either by following a broken link or typing in the wrong URL. Having a custom 404 page30 that kindly guides users back to a working page on your site can greatly improve a user's experience. Your 404 page should probably have a link back to your root page and could also provide links to popular or related content on your site. You can use Google Search Console to find the sources of URLs causing "not found" errors31.
Your social media strategy is more than just a Facebook profile or Twitter feed. When executed correctly, social media is a powerful customer engagement engine and web traffic driver. It’s easy to get sucked into the hype and create profiles on every single social site. This is the wrong approach. What you should do instead is to focus on a few key channels where your brand is most likely to reach key customers and prospects. This chapter will teach you how to make that judgment call.
The SEO starter guide describes much of what your SEO will do for you. Although you don't need to know this guide well yourself if you're hiring a professional to do the work for you, it is useful to be familiar with these techniques, so that you can be aware if an SEO wants to use a technique that is not recommended or, worse, strongly discouraged.
Off-page SEO builds a website’s reputation and authority by connecting it to other high-quality websites. Off-page SEO techniques include: link building (acquiring high-quality backlinks) from other websites and managing local listings and directory profiles. When many websites link to a brand’s website, it shows search engines that the brand’s website is trustworthy, reliable, and reputable, which increases its search rankings.
Small business owners sometimes think that search engine marketing (SEM), also known as pay-per-click advertising (PPC), is not lucrative option for them. They may think they can’t afford it, or that their online presence is not important if they are a local or service-based business. The truth is, as search engines have undeniably become a part of our lifestyles as consumers, there are many ways to leverage them for businesses of any size. This post will introduce you to the basics and benefits of search engine marketing (SEM).
Social media has been one of the fastest growing digital marketing channels for years now and continues to play a major role in brand development and customer acquisition and engagement. Social media now is a critical element to effective content marketing and search engine optimization strategies. These marketing strategies simply can’t exist well without one another. https://youtube.com/watch?feature=player_embedded&v=e29F5n3ea0I

SEM search results have ad extensions. SEO search results have featured snippets. When comparing SEM vs. SEO, you’ll also find differences in the appearance of the search results. SEM search results may include ad extensions, which can add on additional links, phone numbers, and callouts. On the other hand, SEO results may appear with featured snippets in search.
Structured data21 is code that you can add to your sites' pages to describe your content to search engines, so they can better understand what's on your pages. Search engines can use this understanding to display your content in useful (and eye-catching!) ways in search results. That, in turn, can help you attract just the right kind of customers for your business.
Keep resources crawlable. Blocking page resources can give Google an incomplete picture of your website. This often happens when your robots.txt file is blocking access to some or all of your page resources. If Googlebot doesn't have access to a page's resources, such as CSS, JavaScript, or images, we may not detect that it's built to display and work well on a mobile browser. In other words, we may not detect that the page is "mobile-friendly," and therefore not properly serve it to mobile searchers.
Description meta tags are important because Google might use them as snippets for your pages. Note that we say "might" because Google may choose to use a relevant section of your page's visible text if it does a good job of matching up with a user's query. Adding description meta tags to each of your pages is always a good practice in case Google cannot find a good selection of text to use in the snippet. The Webmaster Central Blog has informative posts on improving snippets with better description meta tags18 and better snippets for your users19. We also have a handy Help Center article on how to create good titles and snippets20.
There is a heap of sales clutter on the Internet that is actively annoying and repelling your customers. Don’t let your brand be that guy – instead, your video should be centred around the story and not the sale. Remember: the same rules that apply for written content marketing apply for video marketing – concentrate on the value you’re providing for your customers.
It is very rare for an individual to enter a management role early in his or her career. Most marketing managers have spent several years working somewhere else on a marketing team. This assumes the existence of at least a bachelor's degree, but an advanced degree such as a master’s in marketing or business administration can give an aspiring manager a deciding edge.
There are a lot of fantastic points in this article. Video is absolutely the way to go because of just how engaging it is with customers. But when dealing with mobile there are a couple things that you need to make sure you are doing. You need to capture their attention early since attention span on mobile (especially on apps like Facebook) is pretty low. Design the video for sound-off viewing with things like subtitles. Have a clear call to action at the end of your video. The last thing is to plan for vertical viewing since “people are 67% more likely to watch the full length of square videos than they are to watch horizontal ones.” (source: https://sundaysky.com/blog/5-mobile-video-best-practices/ )
Links - Links from other websites play a key role in determining the ranking of a site in Google and other search engines. The reason being, a link can be seen as a vote of quality from other websites, since website owners are unlikely to link to other sites which are of poor quality. Sites that acquire links from many other sites gain authority in the eyes of search engines, especially if the sites that are linking to them are themselves authoritative.
People have more options than ever on where they’re starting their research, both in the traditional website sense (i.e., Google, Amazon, Pinterest, Facebook, Next Door, Trivago, Houzz), but also in new ways with voice search on Siri, Alexa, or Google Home. Tactically, of course, everything is different, but that’s the case with all marketing: the “how” will constantly evolve.
Our backgrounds are as diverse as they come, bringing knowledge and expertise in business, finance, search marketing, analytics, PR, content creation, creative, and more. Our leadership team is comprised of successful entrepreneurs, business executives, athletes, military combat veterans, and marketing experts. The Executives, Directors, and Managers at IMI are all well-respected thought leaders in the space and are the driving force behind the company’s ongoing success and growth.

After your site has been built out, creating a social media presence is the best second step for most businesses. All businesses should have a Facebook Page that’s fully fleshed out with plenty of information about your business. Depending on your audience, you can also start a Twitter, Instagram, and/or Pinterest account. Social media is a long-term commitment that requires frequently updating and monitoring, but it’s one of the best ways to build an online community around your business.
The most common imaging mode collects low-energy (<50 eV) secondary electrons that are ejected from the k-shell of the specimen atoms by inelastic scattering interactions with beam electrons. Due to their low energy, these electrons originate within a few nanometers from the sample surface.[14] The electrons are detected by an Everhart-Thornley detector,[29] which is a type of scintillator-photomultiplier system. The secondary electrons are first collected by attracting them towards an electrically biased grid at about +400 V, and then further accelerated towards a phosphor or scintillator positively biased to about +2,000 V. The accelerated secondary electrons are now sufficiently energetic to cause the scintillator to emit flashes of light (cathodoluminescence), which are conducted to a photomultiplier outside the SEM column via a light pipe and a window in the wall of the specimen chamber. The amplified electrical signal output by the photomultiplier is displayed as a two-dimensional intensity distribution that can be viewed and photographed on an analogue video display, or subjected to analog-to-digital conversion and displayed and saved as a digital image. This process relies on a raster-scanned primary beam. The brightness of the signal depends on the number of secondary electrons reaching the detector. If the beam enters the sample perpendicular to the surface, then the activated region is uniform about the axis of the beam and a certain number of electrons "escape" from within the sample. As the angle of incidence increases, the interaction volume increases and the "escape" distance of one side of the beam decreases, resulting in more secondary electrons being emitted from the sample. Thus steep surfaces and edges tend to be brighter than flat surfaces, which results in images with a well-defined, three-dimensional appearance. Using the signal of secondary electrons image resolution less than 0.5 nm is possible. http://youtu.be/e29F5n3ea0I

Search Engine Marketing (SEM) aids businesses gain market online by purchasing Ads on search engines such as Google, Yahoo or Bing. The SEM practices revolve around the promotion of websites in SERPs to optimize the brand presence and conversions. SEM utilizes paid and unpaid advertising means to optimize the promotion of online businesses, and we especially created this What is Search Engine Marketing Guide to help you understand how both ‘paid & unpaid means’ work under the umbrella term Search Engine Marketing. http://www.youtube.com/watch?v=e29F5n3ea0I&feature=kp
Place strategic search phrases on pages. Integrate selected keywords into your website source code and existing content on designated pages. Make sure to apply a sug­gested guideline of one to three keywords/phrases per content page and add more pages to complete the list. Ensure that related words are used as a natural inclu­sion of your keywords. It helps the search engines quickly determine what the page is about. A natural approach to this works best. In the past, 100 to 300 words on a page was recommended. Many tests show that pages with 800 to 2,000 words can outperform shorter ones. In the end, the users, the marketplace, content and links will determine the popularity and ranking numbers. http://www.youtube.com/v/7bNPg8UbhaE&feature=youtu.be
×