Online photo course?

[Disneyfn420]

I've been reading some of the tips threads and they are great. I just got a new camera that has automatic features but also a ton of manual features. I know for taking pics of rides, and moving objects and night shots, many of the auto features or scene settings don't work as well. I'd like to learn how to use all the features of my camera. Can anyone recommend a site to learn how to use manual features of a camera, like shutter speed and aperture, etc? Preferable a free site. Thanks!