TweetBox.fx is a Twitter desktop client. It lets users send updates, replies, and direct messages. Users can retrieve their friend's timeline, their own timeline, direct messages, replies, and their favorites. TweetBox also allows the user to view multiple timelines at the same time. TweetBox has a very user friendly entry box for typing updates. It shows you how many characters are left and provides a very easy-to-use URL-shrinking function. TweetBox can also detect links to pictures on Mobypicture and TwitPic and respond by showing, instead of the original URL, a link labeled "picture" that pops up a thumbnail when the mouse hovers over it.
Lifesaver is a GNOME Screensaver that displays recent posts about Ubuntu on Twitter, Identi.ca, and FriendFeed. Since it performs automated searches of various unfiltered Internet resources, you may encounter language and opinions that are offensive to those of a sensitive disposition, or inappropriate in a workplace environment.
BitlBee allows users to talk to people on the major instant messaging and microblogging networks (including MSN, Google Talk, AIM, and Twitter) from within any IRC client by emulating an IRC server. Virtual channels are created with all of the user's contacts in them, who can be talked to in the channel or in a query. Also, one can participate in group chats and chat rooms like they were normal IRC channels.