I’m very impressed of how many applications are being built on top of Twitter. This simple communication tool bas became so popular that people use it to expand their business relationships, promote themselves, discover new friends, talk about stuff they like, et cetera..

Here are some tools (maybe mashups?) which use Twitter:

Here you can find other 100 Twitter Tools

Share and Enjoy:
  • Twitter
  • Digg
  • del.icio.us
  • Reddit
  • Facebook
  • Google Bookmarks
  • StumbleUpon
  • Technorati
  • FriendFeed
  • Google Buzz
  • MySpace
  • Slashdot