Rainbow Stream!

TweetDeck aims to evolve the existing functionality of Twitter by taking an abundance of information i.e twitter feeds, and breaking it down into more manageable bite sized pieces. From a poster's point of view, it supports shortening URLs by a couple of different services, posting and hosting images at different sites, and scheduling tweets to be posted even if you're offline.

Tweetbot is a full-featured Twitter client with a lot of personality. Whether it’s the meticulously-crafted interface, sounds & animation, or features like multiple timelines & smart gestures, there’s a lot to love about Tweetbot.

Choqok - KDE Micro-Blogging ClientThe name comes from an ancient Persian word, means Sparrow!Currently supports Twitter.com and Identi.ca services.It currently features:

Gwibber is an open source microblogging client for GNOME developed with Python and GTK. It brings the most popular social networking web services to your desktop and gives you the ability to control how you communicate.

Echofon: social apps for Twitter and Facebook.

Twitterrific is a fun application that lets you both read and publish posts or "tweets" to the Twitter community website. The applications user interface is clean, concise and designed to take up a minimum of real estate on your Mac or iOS device.

Tweetdeckr is an open source TweetDeck replacement client.

Janetter is a Twitter client application.Faster, smarter, and more powerful.The best Twitter client on the net!

Terminal-based Twitter Client with Streaming API support. Only supports Ruby 1.9 and later.

Twicca is a Twitter client for Android that is simply awesome.

"Tweet It!" is designed with every single Windows device in mind. From phone with touch screen to desktop PC with mouse and keyboard you'll have great expirience. And Continuum support for pleasant PC like Twitter browsing when you are away from it.

Oysttyer is a console text-based command-line Twitter client and Perl platform, fork of ttytter

UberSocial will keep you up-to-date while you're on-the-go, offering lightning-fast functionality, curated content, customization options, and a richer, more user-friendly Twitter experience. The world's most popular full-featured Twitter app is available for BlackBerry, iPhone, Android!

Aeries is a powerful Twitter client exclusively for Windows. Aeries has been designed to make using Twitter easier than ever, all packaged together in a slickly designed app. Fall in love with Twitter again through the power of Aeries.