Check out
http://www.nikonians.org. I don't know what brand camera you have but it doesn't matter for learning. There are a lot of different areas for different specialties, such as portrait and close-up and forums for different Nikon cameras, etc. Even if you don't own a Nikon you will learn a ton on this site. They do ask that any photos posted for review be taken with a Nikon.
Good luck! Right now it's a real tug of war between the 911 and my camera equipment. I don't know which one is costing me more!
Joe