I've been thinking a bit about my use and abuse of Powerpoint in the classroom. I don't use it much, but I taught a new workshop on RSS this week and found it useful to organize my thoughts with new material. I ran across this blog post on iLibrarian: 4 ways to spice up your presentations. If you use Powerpoint at all, at least watch Meet Henry and Death by PowerPoint for some great ideas and examples of PPt done right and wrong.
(Wow, Henry gives me a Clark from Smallville vibe.)