Roundup/Software
XMPP Roundup 13: software
XMPP Roundup 14: software
Clients
Servers
Libraries
Those that don't fit the above categories (but that rock though)
twitter-xmpp bot
Uriah Welcome http://github.com/precision/twitter-xmpp/
PAD-XMPP: People Are Ducks
Tim Bielawa http://github.com/tbielawa/PAD-XMPP