Twitter button plus is nice and useful tool to show Twitter tweet button on your website.
The Widget Twitter plugin lets you to fully integrate your WordPress site with your Twitter account.
Display Twitter Tweets Using Widget On WordPress Blog With Follow Button
Twitter Widget with Tweet Reach: Shows latest tweets for any keyword or, your handle along with Twitter Reach.
Widget to add the Twitter Tools Profile, List, Faves, and Search Widgets, with all configurable options.
Generates quick follow buttons for multiple twitter accounts e.g. follow the influencers.
Ultimate twitter profile widget. Plugin shows your tweets on Page/Post/Widget area.
Use Domain Shortlink is no longer needed as of Twitter Tools 3.0. See changelog for notes.
Twitter Profile Widget. Plugin shows your tweets on Page/Post/Widget area.
Tweeter Search Widget. Plugin shows your search tweets on Page/Post/Widget area.
Tweet&Get it ! is an automatic process to get Twitter followers in exchange for a downloadable file.
Share&Get it ! automatically provides you with either Facebook fans or Twitter followers in return for downloadable content
Stable:1.0.0 Adds simple function to send a tweet. Accepts Twitter username and password as parameters, or gets them from Twitter Tools if available.
Adds twitter search tags to the Twitter Tools automatic "New Blog Post" status using Twitter Tools.
Here is a short description of the plugin. This should be no more than 150 chars. No markup here.