I’ve been catching up on some Lightroom tips, since I’ve been processing a few images recently, causing me to spend some time in that app. I really liked a recent episode of “The Complete Picture with Julieanne Kost” called “Timesaving Features in Lightroom 2”. There are some great tips in there. The first couple (changing the hiding behavior of side panels and solo mode) are particularly ones that I’ve found useful.
I think that show in general is good, and would also highly recommend the episode on DNG profiles.