1)   SitePopularity 4.10
SitePopularity will check any number of websites for the most important ranking criterias such as Google Pagerank, Alexa & Compete Rank, Dmoz listing and links from other websites. SitePopularity features advanced functions, yet it's easy to handle.

 2)   The Groovytastic Link Maniac Version 1
This software called The Groovytastic Link Maniac will help you to check your link popularity and also to spy on your competition.

 3)   Link Buzz 1.01
Link Buzz is a link popularity checker software which allows you to check for the no. of backlinks you have on six major search engines and databases and also the no. of pages you have indexed on the Google, Yahoo and MSN for any website you enter.