School is a great resource for learning SketchUp. Try their podcasts covering tips, tricks, and applications for a variety of professions, or check out their interactive DVD, SketchUp Level One. The DVD covers the basics, but that should not deter self proclaimed SketchUp masters because School provides a 100% guarantee that the DVD will teach even the experienced user some new tricks. School is the place to go to connect with other interested users, discuss SketchUp related topics, and post questions. If you post a question in the School forums, then you might wind up being the topic of one of their weekly podcasts.