Searchengineland:
All major search engines such as Google, Bing and Yahoo have primary search results, where web pages and other content such as videos or local listings are shown and ranked based on what the search engine considers most relevant to users. Payment isn’t involved, as it is with paid search ads.
SEO stands for “search engine optimization.” It is the process of getting traffic from the “free,” “organic,” “editorial” or “natural” search results on search engines.
If you want your web business to be found worldwide, understanding search engine optimization (SEO) is one major way to do it. SEO is a way to get your website noticed without having to pay. Using keywords of what you’re promoting within your content as well as your title and domain name is one of the most common SEO tips to help your web business. Another very useful SEO tip would be to link your website with other similar sites to increase your web presence and to become a source for other pages to link to as well. This will show the search engine that your website is relevant and a good source of information and will encourage them to promote your site more often.