LINKS FOR LIGHTERS
Chuck Gardner has some interesting points to make. Take a philosophic tour with Chuck and see exposure, lighting, and a bunch of odds and ends through his eyes: http://super.nova.org/DPR/
If you want to learn to create stunning images using your on-camera flash off the camera, you have to check out the Strobist: http://www.strobist.blogspot.com/
Check out the lighting themes at one of my favorite places: The Lighting Forum at Photo.net. Watch and learn as the seasoned and the aspiring bring their game: http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00BjHh
Navigating can be tricky, but you can certainly glean lots of interesting info at Professional Photography 101: http://www.professionalphotography101.com/