Computer Science Links

http://java.sun.com/docs/books/tutorial/
The Java tutorial. The official tutorial from Sun Microsystems.

http://chortle.ccsu.edu/CS151/cs151java.html
The Kjell Java tutorials. A great online textbook.

http://ace.delos.com/usacogate
USA Computing Olympiad training.

http://ibcomp.fis.edu/
IBCS website from Frankfurt International School. Lots of great examples.