Twitter has super-sweet widgets to display your Tweets anywhere on the web. You can also create a custom widget with Tweets from the sources of your choosing!
Access widgets from the Resources link in the footer of all Twitter web pages. To add a Twitter widget to your social network, website, or blog:
Profile widgets display the public Tweets of anyone on Twitter. Try entering a few user names to test it out!
Once you've added the widget code to your site, voila! You've got Tweets!
Customize your Twitter Search Widget using the three left hand tabs on the widget screen: Settings, Appearance and Dimensions. Note: search widgets will not work on Facebook.