Although I don't teach on the topic, I've also contributed to the Social Psychology Online Laboratory, which is similar to CogLab.
The Visual Perception Online Laboratory is a similar (but much smaller) project, with everything related to aspects of visual perception.
STATLAB Online uses a similar model as CogLab, but at the end of each experiment students are guided through a statistical analysis of their data.
A Online Statistics is a web-based textbook on statistics that verifies that students complete reading assignments.