Joey Hess id@joeyh.name is the author of git-annex. If you need to talk about something privately, email me.

The forum is the best place to discuss git-annex.

For realtime chat, use the #git-annex channel on irc.oftc.net. You can also watch incoming commits there.

The VCS-home mailing list is a good mailing list for users who want to use git-annex in the context of managing their large personal files.