Link Popularity - checks the total number of web pages which link to a website
Link Quality - Link popularity checker and link quality assessment
Link Price Calculator - help to determine the approximate amount you should be paying (or charging) per month for a text link (ad) from each and every page of the specified website
Site Link Analyzer - analyze a given web page and return a table of data containing columns of outbound links and their associated anchor text
PayPerPost - Get quality contextual links though sponsored blog postings