External Links

Many top SEOs agree that finding external links (links directing to your site from another website or blog) is the single most important objective of attaining high rankings. Many people base this belief on the idea that external linking can be difficult to manipulate and heavily relies on third parties that considering your website as relevant or have influence.  A high number of links to your site that show up in a variety of places on the internet is indicative of its popularity. This method was first used by one of the first search engines,  Alta Vista and was later improved Google.