Advertising firm Waggener Edstrom introduced Twendz earlier this week and I'm already a fan. It is a Twitter tracking engine that allows you to follow trends and sentiment in "real-time".
In the screen-cap above, I'm monitoring the trends around the ill-named "Employee Free Choice Act" (also known as Card Check). If you're a real-time news junkie, Twendz can be a valuable asset.
Update: I forgot to mention that, if you truly have no life whatsoever, you can even elect to follow me on Twitter.