Twittfilter is actually an old project. I started it last Spring but only shared it with a few friends. The first feature of Twittfilter is the ability to send you an email if a term (typically your twitter name) is found in the public stream. Since you get an email you do not have to be at a desktop to get replies. Pretty useful.
Lately, the number of people whom I follow and follow me have been increasing, and I’ve found I use DM’s on twitter more and more, almost as a secondary email/IM service. Well this is all good and fine, except when I want to DM or @ someone and do not remember their twitter name. Clearly we need an address book… and so I wrote one. While I was at it, I added a few more features.