Glancing
“Glancing: An application to allow ultra-simple, non-verbal communication amongst groups of friends online.
It’s a desktop application that you use with a group of other people. It lets you “glance” at them in idle moments, and it gives all of you an indication of the activity of glancing going on.
A group is intended to be less than a dozen people. A person may belong to several groups simultaneously by running separate instances of Glancing. Groups are started deliberately, probably by using a www interface, and people are told the group secret so they can join (a “secret” is just a shared password). “