What is Link Popularity?
Link Popularity is A measure of the quantity and quality of sites that link to your site. A growing number of Search Engines use link popularity in their ranking algorithms. Google uses it as it’s most important factor in ranking sites. HotBot, AltaVista, MSN, Inktomi, and others also use link popularity in their formulas. Eventually every major engine will use link popularity, so developing and maintaining it are essential to your Search Engine placement.