Twitterrific is a fun application that lets you read and publish posts or "tweets" to the Twitter community website. The application's user interface is clean, concise and designed to take up a minimum of real estate on your Mac's desktop.
Twitcher
Use twitcher if you want uncomplicated, fast and easy to use desktop access to your twitter account. It has many of the normal features you would expect plus some more like ToolTips that show expanded shortened URLs.
Twitcher
