Fundamentals of mixing/DJing (on computer)?

[sonick]

So I just bought M-Audio Groovelab for the Transit USB sound card, but found that it comes with a 'lite' version of Ableton Live, which I've been reading, is a pretty popular program for doing this kind of stuff.

I'd just like to know if anybody could recommend any sites that I could read up on the basics of Mixing/DJing (the musical side, not tutorials on how to use the program)?

Thanks