There's lots more! Including:
Tools for assigning exercises and setting due dates
Rosters that track all student work automatically
An exercise editor for adding your own exercises
the full CodeLab.
"I think the CodeLab exercises are great. I've had a little programming experience and I can't think of a better way to learn a language or concept than from experience itself." Mark Manos, Student, University of Oklahoma .
"I now highly recommend the use of CodeLab to all other instructors and students. It finally provides both the programming practice and evaluation support that I have been seeking for an introductory course." Michael Schultz, Instructor, University of Wisconsin
"I just wanted you know I've gone past the limit I needed to do for class, so I am through now. I'd like to thank you so much for all of your help. I learned more than I thought I would from this." Brian Yates, Student Kansas State University.