Robust messaging for applications Easy to use Runs on all major operating systems Supports a huge number of developer platforms Open source and commercially supported
Lets be honest here: who does not instant message (IM) nowadays? Heck, I walked into the advising office at my university and the front desk secretary was IMing my adviser to see if she was available.
IM all your friends in one place Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.