"Twidget is a free Dashboard Widget for OS X that allows you to update your Twitter status."

"How does twiggit work?
It's pretty simple, every so often we check for the last article that you voted for on digg, and update your twitter status to reflect this.

What does my twit ...

"A desktop Twitter client built on AIR

Twinja is an amazing online application that empowers you with the functionality of Twitter.com from your desktop! It's easy to use and works on both Mac & PC.

• ...

"Upload photos and update your status on your Twitter account."

"See trends in Twitter, find out what is hot and what people are saying about it."

"Twitch is a cross platform Twitter client that is designed to be clean, simple, and fun

• Automatically updates your timeline
• Combines your friends tweets and replies into one stream
...

"TwitDir is a Twitter Directory. Search for Twitter users! Find your friends on Twitter! TwitDir is a Twitter users (some call them twitterers) directory, no more! It allows you to search for friends (real or fake). Twit ...

"TwitKit can run along with Firefox on Windows, Mac, and Linux… so everyone can enjoy it.

TwitKit has a 'me' tab where you can view stats about you and Twitter—how many friends you've had, your location, how many t ...

"Twitlet is a bookmarklet (very small javascript application living on your browser) for fast updating your Twitter status."

"What is TwitPic?
TwitPic lets you share photos on Twitter

How do I use TwitPic?
You can post pictures to TwitPic from your phone, our API, or through the site its ...