I am starting to work with international subcontractors, and a couple of them prefer IM for quick day-to-day discussions.

Is there an IM client that is universal, so I'm not stuck with only the Yaho "family of users" or MS's, or whatever? What do you use for IM? What has been your expereicne with it? Can you save discussions so they become part of your project records?

Thanks, any IM-er out there for your input!
IM Larry