• meebo.com
  Multi-client IM (MSN, Yahoo, AIM, Myspace, google talk, facebook) via the web
  Meebo, the web platform for IM on any network or site. Meebo connects you to MSN, Yahoo, AOL/AIM, MySpace, Facebook, Google Talk, and many more!
  aim express facebook google instant live messenger msn myspace talk web windows yahoo
  in cool web services with im instantmessenger by 61 users

instantmessenger from all users