Congrats on your camera. The best advice is to SHOOT LOTS OF PICTURES. The best way to learn is by doing. Keep your camera always in one of the four following modes: Programmed Automatic, Shutter Priority, Aperture Priority, or Full Manual.
Learn how to quickly change your ISO setting to adjust to various light environments.
Take a look at flickr.com, and get ideas of what kind of pictures YOU like, and how to emulate them.