I recently finished up Joel Comm’s book Twitter Power 2.0. The video below gives you the good stuff, but here’s the 10-second version:

Pretty good practical resource for people new to Twitter. Joel does a nice job of really covering the bases and giving good guidelines for setting things up.
If you’re fairly familiar with Twitter already, you’ll definitely want to just skip through quite a few parts. But in the midst of all that are some pretty good morsels to put to use.
The list of third party resources in the back is very helpful.