I have just released a small API to my website SiteAmount... Currently it will only return the PageRank and AlexaRank of a URL but I kept it small at first to see if people would use it. I have a page set up here: http://siteamount.com/apidoc.php It has all the info on how to use it, and a code sample to get results. Check it out and tell me what you think, if all goes well I will be adding many more features to it.