Free-Ed.Net assembles active learning resources from the Web into reasonably coherent structures that we call Complete Courses. The actual form of these courses depends on the nature of the subject and the level of academic maturity the learner is expected to have. Unlike traditional curricula, courses at Free-Ed.Net tend to have no well-defined beginning or end, and learners set their own pace and standard of achievement. (This is how sustainable, lifelong learning works).