Gwibber - Gwibber is an open source microblogging client for GNOME developed with Python and GTK.
Choqok - Choqok - KDE Micro-Blogging Client The name comes from an ancient Persian word, means Sparrow!
Oysttyer - Oysttyer is a console text-based command-line Twitter client and Perl platform, fork of...
TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.
Turpial - Turpial is a lightweight and beautiful microblogging client written in Python.
Earthquake - Terminal-based Twitter Client with Streaming API support. Only supports Ruby 1.9 and later.