"Versal is a new way for anyone to create and publish interactive online courses - no coding required. The site provides a simple to use editor to add content, which it then publishes and hosts for you. For free.
Versal uses a system of modules it calls gadgets to easily incorporate videos, surveys, quizzes, diagrams, and other tools to make your course more engaging. Gadgets are mini JavaScript apps that you drag-and-drop into into a course. The basics include text, video and images, but the real magic happens with customizable and interactive simulations, diagrams, timelines, flash cards and more."
On Classmill you can create public or private (invitation-only) courses. Courses are built as a series of modules. In each module you can include videos, text, images, links, and file attachments. You can also embed games and interactive simulations into each module. A discussion forum is automatically added to each module in your course. If you make your course private you will have to email invitations to your students.