Outlook + Twitter = OutTwit
I've been wanting to integrate Twitter into my workflow. I believed I needed an IE7 Twitter plugin, so I could be like the cool kids. I would scan the Twitter Fan Wiki looking for the right Twitter App
However, OutTwit has made me change my mind. I can update my Twitter and follow friends from Outlook, the app I spend 90% of my time in every day.
Thanks to Sarah in Tampa who read about it at The How-To Geek