Link Popularity Assessment
Link Popularity, simply defined, is a measurement of how many sites link back to yours. This is the second most important thing in search engine optimization (in case you were wondering, the number one most important thing in search engine optimization is rich, unique, interesting site content).
This tool checks Google, MSN and Yahoo to see what they have to say about your site's link popularity. You're likely to notice large disparities between what each engine views as a valid link to your site, so the numbers tend to differ greatly. This is a product of each search engine utilizing a different algorithm for rating your site.
Remember, search engines view a link to your site as a vote for your site. More votes equals better rankings in the SERPs (Search Engine Result Pages).
