The Visual Perception Online Laboratory is a similar (but much smaller) project, with everything related to aspects of visual perception.
STATLAB uses a similar model as CogLab, but at the end of each experiment students are guided through a statistical analysis of their data.
IntroStats Online is a web-based textbook on statistics that verifies that students complete reading assignments with end-of-section questions, has on-line activities, provides calculators, and homework questions.