http://tinychat.com. Tiny Chat allows anyone to chat no matter what set up you’ve got.
Here’s the link to my chat room. This semester (spring 2010), I’m going to try to have my chat room open during all of my office hours.
http://tinychat.com/scotthoshidaeng5
http://etherpad.com allows you to do real-time editing of a document. Exactly what you need for a collaborative writing project.
++++
