"[a list] — arranged in alphabetical order — includes 80 online resources that you can use to learn how to build or participate in a collaborative educational effort that focuses on publication and development of those materials. Although some choices focus solely on publication, development, or tools used to accomplish either effort, some provide multifaceted venues that offer communities in which to collaborate on one or all of these efforts. Collaborators can include institutions, colleges or universities, educators, students, or the general public"
Via Dr. Susan Bainbridge, Mark Smithers, JohnRobertson