-communication, yes. How can we do without it?
-maps. Uploading (although I don't do this very often now), playing (also not very often), following the progress of mapmakers (as much as I want), sometimes helping a little.
-discussing games (relatively rarely lately, but still)
-playing Mafia, hosting Mafia games.
-playing and hosting experimental games! This doesn't happen constantly, but it does, and it's a very interesting way to spend time.