CrackingTutorials
Well, here you have a lot of tutorials, all in Spanish(sorry).
If you want a lot of tutorials of cracking (all in spanish):
If you want curses of a lot of things(nets, C, Pascal, internet,...):
Compilacion de Cursos v 1.0 2.4Mb
And if you don't want to make your own cracks, you can search them in the best finder of cracks (Astalavista):