Good all-round CS book
petercooper: Wikipedia is an amazing resource for computer science stuff, I've found. For example: http://en.wikipedia.org/wiki/Sorting_algorithm .. you can get lost in there for ages. Just make sure you take notes and try to apply what you learn.Also: http://delicious.com/popular/compsciAlso: http://academicearth.org/subjects/computer-science (this one is a goldmine)