there are wayyy too many to name i guess but really it depends what your into.
I do Mathematics and CS but mainly Math because i only like doing programming in CS.
So depends what you like in CS is it Game design and programming API's or source code and developemnt . then sourceforge slashdot and lugradio are brilliant
i started my own blog gona put up my game development stuff and some netbeans and programming tutorials mainly of getting svn projects and compiling and running them and some linux tutorials