What it is:  Free Private Chat

How it works:  Users simply go to the website and put in the email addresses of those they would like to invite to the chat.

How it might be used in education:  Wide potential. Discussed it as an option to set up extra office hours with the instructor if s/he had to cancel class or for some other reason.

Pros:  Can use without registering, free to use, simple

Cons:   Does not set up permanent space for chat. Would need to re-invite for each session.

Find it at:  http://www.chatzy.com/