A measure of the quantity and quality of sites that link to your site.
Link popularity is an example of the move by search engines towards off-the-page-criteria to determine quality content. Off-the-page-criteria adds the aspect of impartiality to search engine rankings, as citations from other authors in the Web community helps define a site’s reputation. In theory, great sites will naturally attract many links, and content-poor sites will have difficulty attracting any links.
Link popularity assumes that not all inbound links are equal. For example, an inbound link from a major directory carries more weight than an inbound link from an obscure personal home page.
checks AltaVista, HotBot, Google.
Ten Steps to Building Links to Your Site
Traffick (May 4, 2002)
The Right Way to Improve Link Popularity
Traffick (April 14, 2002)
Linkability – Why Do Some Sites Have It While Others Don’t?
ericward.com (February 2002)
The Road to Link Popularity
ClickZ (September 26, 2001)
The Five Major Flaws of Link Popularity
ClickZ (February 1, 2001)
Link Popularity Is Not Your Only Linking Goal
ClickZ (October 26, 2000)