The Open University offers over 600 free online courses from their LearningSpace site where all content is made available under a creative commons licence (see below).
Creating Open Educational Resources is a 15 hour introductory course looking at the pedagogical issues involved in the creation and selection of self-study educational materials. It is a unit about writing a unit and distinguishes between the different purposes of self-instruction and gives advice about techniques and strategies to help the learner when they are engaging with what is considered to be open-learning materials.