IMlogic :: Free Instant Messaging Detector

IMlogic :: Instant Messaging Infrastructure has a link to their free IM detector tool. IM Detector reports logon attempts, messages sent, messages received, file transfer requests made, and file transfer requests received over the major IM networks. It also detects Gnutella and FastTrack file sharing info.

I just tried it and it works pretty well. It can be set to monitor HTTP proxy traffic too. Definitely a good way to prove that every company needs a policy put in place asap, because this shows will show there's little doubt that people in just about every company are using Public IM. What it doesn't do is record who is using IM (although it looks like it will with P2P apps). The reporting page is nice, running on port 8090 and accessible with a web browser (a feature every app should emulate imo).