Back Links - SEO Glossary
Backlink is the term used to describe a link that points to a web page normally from an external site. These types of links are essential in gaining good rankings in all search engines. Google are famous in the way that they evaluate a link. In the eyes of Google it is a popularity contest, the more links you have pointing to your site the more popular you are. The sheer number of links can influence a sites rankings greatly but it is good practice to only request links from sites that are similar to your own site theme, this can help Google and Yahoo to identify a general theme and help them to associate your site in to large themed clusters.
There are ways of gaining large amounts of links that are frowned upon by search engines and main stream optimisation companies, blog spamming, this entails running automated software to insert links into blogs. Due to the number of blogs out on the web, it is easy for a blog spammer to hit a million URLS in a day or so and get 200,000 to 5000,000 text backlinks, while in the short term this can boost a site in the results it is not a long term seo tactic as the search engines normally pick up on this and discount the links. With anchor text being such an important factor in linking it can be a very attractive proposition for quick short term seo campaigns.
Related: Link exchange