Today we're starting the closed beta period. There are still some features that haven't been implemented yet, but in order to move quickly, I decided to start the closed beta phase, so those features that are already there can be tested. There are today about 10 beta-testers but the more the merrier so if you'd like to be part of it, just go to http://www.corank.com/ where you'llfind information regarding how to become a coRank beta tester :-)