SEO: Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a search engine's "natural" or un-paid ("organic") search results. In general, the earlier (or higher ranked on the search results page), and more frequently a site appears in the search results list, the more visitors it will receive from the search engine's users. SEO may target different kinds of search, including image search, local search, video search, academic search, news search and industry-specific vertical search engines. http://en.wikipedia.org/wiki/Search_engine_optimization
Search engine optimization is a complex subject, especially when you consider all the information and misinformation readily available online. Unfortunately it’s often hard to tell which is which. Does the latest tactic you’re reading about work? Does it work for all sites? Only some sites? Or is just another crackpot theory that sounds reasonable, but will never help to improve search traffic to your site?
On September 26, Google took another step toward becoming that answer engine with its Hummingbird update. In Danny Sullivan‘s live blog about the Hummingbird algorithm, he explains how Google is rapidly adopting semantic Web technology while still retaining parts of its old algorithm. This is Google’s solution for evolving from text links to answers. Such a system will display more precise results faster, as it’s based on semantic technology focused on user intent rather than on search terms.
To review Google’s progress in this direction: first came the Knowledge Graph, then Voice Search and Google Now all providing answers, and sometimes even anticipating the questions. To serve these answers, Google relies on entities rather than keywords.
But I found something even better:
What is Search Engine Optimization (SEO)?
SEO is the practice of improving and promoting a web site in order to increase the number of visitors the site receives from search engines. There are many aspects to SEO, from the words on your page to the way other sites link to you on the web. Sometimes SEO is simply a matter of making sure your site is structured in a way that search engines understand.
Search Engine Optimization isn't just about "engines." It's about making your site better for people too. At Moz we believe these principles go hand in hand.
This guide is designed to describe all areas of SEO - from discovery of the terms and phrases (keywords) that generate traffic, to making a site search engine friendly, to building the links and marketing the unique value of the site/organization's offerings. Don't worry, if you are confused about this stuff, you are not alone.