Do you have restrictions on Instant Messaging at work? Can't connect to an IM client? Try meebo. It'll connect you to GTalk, MSN, AOL, ICQ, and others! Best part of all? Its free and it is entirely a web client! No installs, no admin rights required. Get the rest of your team using it and free up that Revit workset your teammate has had checked out. Just send him/her an IM.
It's easy to use. Want to chat with me? click the widget on the right. If its green, then I am online!
If it is red, then I am unavailable.