Web Site Links
Below are some of my favoite sites.
GridWorld APCS Case Study Related
GridWorld Assignment Repository - Please post your project ideas!
Cay Horstmann's Unofficial GridWorld Site
Instructor Sites
Dave Reed's APCS Resources - APCS Chief Reader
Chris Nevison's APCS Unofficial Page - Former APCS Chief Reader
Stacy Armstrong's A+ Computer Science
Dave Wittry AP Computer Science
Programming Problems
Javabat - Java practice problems
Project Euler - math based programming assignments
Nifty Assignments - SIGCSE reposity of nifty programming assignments
Robocode - battling robot simulation
Books
Thinking Recursively with Java
Tools
JUnit - Java Unit Testing tool
JAM*Tester - teacher (or student) program grading tool using JUnit
GDSV - Generic Data Structure Viewer
Games
CISCO Learning Games (other than Binary)