Learning more about racing I don't race and never will race. However, I am very interested in learning more about it. I read a number of cycling magazines, and I read about so many different racing terms, strategy etc. but they are never explained. Does any know of a good source (like a Bicycle Racing 101 course) where I can learn more about racing?
The best thing to do is to watch television coverage of races. For just learning, it is even better than actually being at a race because you can see what is going on and there's plenty of background stories.

Now is the BEST time for stage racing because the Giro has just started. Steephill.tv has bunch of links for online video coverage of the Giro. If you have sports cable channels check those too. The Tour de France in July is also fantastic because of the coverage, but the Giro is usually a more interesting and gritty spectacle, IMHO.