Jabber
SocialNerds Instant Messaging
Server: jabber.socialnerds.org
Feel free to register a new account on this server.
In case you are around jabber MUC's (multi user chat), here is the SocialNerds room.
SocialNerds Jabber MUC: socialnerds@conference.jabber.socialnerds.org
Story about this theme:
http://socialnerds.org/en/node/27
more infos soon...