David Hobby over at Strobist has posted his entire Lighting 101 series in PDF form for your downloading pleasure. David’s advice is invaluable for the new photographer. Once you’re done there, check out this archive of photos and how-to’s, and get cracking, yourself.
You learn a lot more by doing than you do by reading, so go out and start applying this stuff. Start out with some basic ‘monkey-see monkey-do’ action, and then modify techniques to suit your style, over time. Everything is valuable, eventually.