Easily post to and read from your Twitter.com feed....
Instantbird is a multi-protocol Instant Messaging client....
A Twitter client with message store capability...
a simple and elegant Twitter client...
Syncs unread Tweets with your iPhone...
Twitter client with a real OS X look and feel....
Tweetie has long been my iPhone Twitter client of choice...
Connect to AIM, MSN, Jabber, Yahoo, and for Mac OS X....
free video instant messaging software....
Yahoo! Messenger 3.0 for Mac OS X....