Search Engine Back Link Tracking Utility & Backlink Tracker Tool Check your back links over time... Search Engine Optimization This is a completely free utility can be used to check search engines for the number of back links to any specific URL over time, which as you probably know is critical when doing search engine optimization. The functionality of this tool has been rolled into the Keyword Tracking Tool (you can have a single account to manage keyword and back links) How is this done? Through Google's API... And can I just say it was a bitch to get the XML/SOAP stuff working in PHP without any SOAP extensions installed (I had to write all the XML/SOAP functions... make direct socket connections, etc.) If you are interested in learning more about the Google API, we have a Google API forum available. Track all the back links you want...