Tweeterized
Create a dynamic Twitter signature that you can use on forums or social networks.

TweetStalk Follow people on Twitter without them knowing you are. Pretty cool tool :).

Twitbin Keep up with your Twitter conversations from the browser’s sidebar.

FriendBar Combine your favorite browser with Twitter for maximum tweeting experience.

TwitterLine Displays tweets in a toolbar in Firefox. Also you can post updates to your account.

BubbleTweet - Create a 30 sec video in a floating bubble video player on your Twitter page. This is a very cool and innovative Twitter application. Greet your friends and new followers in a short video :).

Twitemerature - Find out how hot you are! 

Mr. Tweet - Get recommendations of who you should follow.

TweetChat - Create rooms in Twitter to chat about everything you want.

TweetBeep - Find out who talks about you or your website!

Twitter Analyzer is one of the most extensive Twitter applications ever… basically, its a tool for Twitter users to analyze themselves or their friends, but Twitter Analyzer takes the statistics data to a much higher level… (it is called by some Twitter users the "Google Analytics for Twitter users") and rightly so, TwitterAnalyzer features more then 50 [...]