sieht aus wie die ultimative drupal/jabber verbindung...
TrophyIM is a Jabber (XMPP) client built on top of strophe
tweet.IM is a free service offered by ProcessOne. It enables you to use micro-blogging platforms like Twitter from your existing instant messaging application. The service makes it easier for you to send messages (called tweets), as well as follow the tweets of other users.
another rss2jabber with enhanced features
"XBookmarks" for "XMPP Bookmarks". It is the Firefox implementation of XEP-0048: http://xmpp.org/extensions/xep-0048.html. You simply need a Jabber account and you can use it. Currently it is very basic, though functionnal, as the XEP is.
grosser jabberservice inkl. sms und mms