"MyOpenMath runs on the free, open source, IMathAS platform, providing free hosted use of this platform in support of free, open textbooks. The intent is to provide classroom use of the platform, without any required cost to students, for schools wanting a managed install of the IMathAS platform, and to provide students self-study opportunities."
Class2Go is Stanford's internal platform for on-line courses.
Class2Go is intended to be an open platform for learning and research. Professors will have direct access to the data for their classes to learn how their students learn. We will facilitate experiments. This could be A/B/N testing of how different things affect student learning, or even bespoke code to try out interesting new features.