A 'back-link' is a hyper-text link on an external website that links back to a target site.  In the early days of the Internet, when search engine technology was still in its infancy, a website's Page-Rank (see 'Page-Rank') or Internet authority, was primarily determined by the number of other websites that linked to it.  The theory went something like this:  if website A has links pointing to it from website B, C, D, E, and F then website A must be real important so website A would be given a higher ranking than say website F who doesn't have any inbound links pointing to it.

To find out how backlinking could help boost your web site's rank on Google call and speak to one of our San Antonio SEO Specialists.