On October 17, 2002, SearchKing filed suit in the United States District Court, Western District of Oklahoma, against the search engine Google. SearchKing's claim was that Google's tactics to prevent spamdexing constituted a tortious interference with contractual relations. On May 27, 2003, the court granted Google's motion to dismiss the complaint because SearchKing "failed to state a claim upon which relief may be granted."[67][68]

Companies that employ overly aggressive techniques can get their client websites banned from the search results. In 2005, the Wall Street Journal reported on a company, Traffic Power, which allegedly used high-risk techniques and failed to disclose those risks to its clients.[15] Wired magazine reported that the same company sued blogger and SEO Aaron Wall for writing about the ban.[16] Google's Matt Cutts later confirmed that Google did in fact ban Traffic Power and some of its clients.[17]
Another illicit practice is to place "doorway" pages loaded with keywords on the client's site somewhere. The SEO promises this will make the page more relevant for more queries. This is inherently false since individual pages are rarely relevant for a wide range of keywords. More insidious, however, is that these doorway pages often contain hidden links to the SEO's other clients as well. Such doorway pages drain away the link popularity of a site and route it to the SEO and its other clients, which may include sites with unsavory or illegal content.
Key phrases are keywords containing multiple words. We tend to use the word keyword all the time, but we don’t necessarily mean it’s only one word. ‘WordPress SEO’ is a keyword, as is ‘Google Analytics plugin’. Keywords usually consist of multiple words! So, in this guide, when we talk about keywords, we usually mean a phrase, rather than a single word.
It's wonderful to deal with keywords that have 5,000 searches a day, or even 500 searches a day, but in reality, these popular search terms actually make up less than 30% of the searches performed on the web. The remaining 70% lie in what's called the "long tail" of search. The long tail contains hundreds of millions of unique searches that might be conducted a few times in any given day, but, when taken together, comprise the majority of the world's search volume.
While SEOs can provide clients with valuable services, some unethical SEOs have given the industry a black eye by using overly aggressive marketing efforts and attempting to manipulate search engine results in unfair ways. Practices that violate our guidelines may result in a negative adjustment of your site's presence in Google, or even the removal of your site from our index.
Not all strategies have to be big. Sometimes your window is small, and you're forced to build for a distinct — or tiny — opportunity. Maybe you don't have time for a proper large-scale strategy at all; a tactic or two might be all you can do to carry in a win. Just make that very clear with your boss or client. Don't misrepresent what you're trying to build as an SEO campaign.

To avoid undesirable content in the search indexes, webmasters can instruct spiders not to crawl certain files or directories through the standard robots.txt file in the root directory of the domain. Additionally, a page can be explicitly excluded from a search engine's database by using a meta tag specific to robots (usually  ). When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish crawled. Pages typically prevented from being crawled include login specific pages such as shopping carts and user-specific content such as search results from internal searches. In March 2007, Google warned webmasters that they should prevent indexing of internal search results because those pages are considered search spam.[46]

Moving into 2016, your website needs to be mobile-ready. There are three types of accepted options for a mobile site in Google’s eyes: responsive design, being set up on a mobile subdomain or use dynamic serving. Google also now ranks websites higher that apply SEO for their apps. So if you have an app, make sure you are taking the time to implement application SEO.
The intent behind “SEO agency” is obvious… The searcher is looking for an SEO agency. Most of these searchers aren’t looking for life lessons from an SEO agency owner. Instead, they are just looking for the best SEO agency to get them more traffic and customers from Google. Plain and simple. I knew this when I created that page, but my SEO ego was too big.
While working at a Fortune 100 company for nine years before moving to lead my current team, I became fascinated by customer behavior. What kinds of digital offerings most deeply engage customers in their digital lives? I started by looking at some case studies of the products, services, communications and experiences that had been embraced and adopted by customers during the first two decades of the internet. Over a period of seven years working on inbound marketing campaigns, what I found was a recurring pattern of three behaviors that drove the adoption of new digital experiences, which I call the three core behaviors of a network:

Once you’ve selected your thought leaders, it’s time to create a process for extracting their expert knowledge. Remember, your SMEs are busy people, and the last thing they probably want to do is interrupt their everyday workflow to ideate, write, edit, and publish an article. Make the process as simple for them as possible by following these steps: 
Most people search on mobile devices - You don't need statistics to show you that in the past few years the online mobile market has exploded, overtaking desktops years ago. Optimizing websites for mobile browsers is critical if you want to rank well in search engine results pages. If you’re unsure how your website measures up, enter your site’s URL in Google's Mobile-Friendly Test.
One great tool to see how your competition has changed is Wayback Machine, which allows marketers to access petabytes of archived web pages. By sifting through Wayback Machine’s extensive database, you can track the evolution of your competitor’s brand and web presence, taking note of factors such as changes in UX design or differences in copy from one web version to the next.

5. Link building. In some respects, guest posting – one popular tactic to build links, among many other benefits – is just content marketing applied to external publishers. The goal is to create content on external websites, building your personal brand and company brand at the same time, and creating opportunities to link back to your site. There are only a handful of strategies to build quality links, which you should learn and understand as well.
Focusing on long tail keywords should be an important part of a long-term keyword research strategy. Long tail keywords are keywords or key phrases that are more specific (and usually longer) than more common keywords, often called “head” keywords. Long tail keywords get less search traffic, but will usually have a higher conversion value, as they focus more on a specific product or topic. Read our post about the importance of long tail keywords if you want to know why you should focus on long tail keywords when optimizing your site.
Advertising with Google won't have any effect on your site's presence in our search results. Google never accepts money to include or rank sites in our search results, and it costs nothing to appear in our organic search results. Free resources such as Search Console, the official Webmaster Central blog, and our discussion forum can provide you with a great deal of information about how to optimize your site for organic search.
Connecting the dots between marketing and sales is hugely important -- according to Aberdeen Group, companies with strong sales and marketing alignment achieve a 20% annual growth rate, compared to a 4% decline in revenue for companies with poor alignment. If you can improve your customer's' journey through the buying cycle by using digital technologies, then it's likely to reflect positively on your business's bottom line.
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