There are lots of great lists of Twitter applications around:
- Brent Schlenker recently highlighted Deontee's 47 awesome Twitter tools you should be using
- Brian Sollis has created 20 Tools for Community and Communication Professionals
- Noupe.com has a list of 25+ incredibly useful Twitter tools and Firefox plugins
I've been putting together my own list of Twitter Applications as well as a Twitter Reading List which includes other lists of Twitter tools and guides to Twitter, etc.
