How's this for using the Wiki. First I broke my Moodle class into groups, easily done in Moodle. Then I added a Wiki activity and separated groups so that each group could work on their own. Then in class I had them make study guides based on questions in the text. It went so well I found myself suddenly and eerily obsolete.
Students were able to collaborate and share information so effectively using this system there was little room for my boring lectures and even for helping with questions. Teaching an ESL Geography and World History class, one would think an instructor would be needed but simply dividing the class into groups electronically, giving them study questions, and having them work on creating a study guide together, one that was editable online, that saved all drafts, that would always be there for reference, put me into the facilitator's role and of course, I was there for tech support.
Try having your class make a Wiki, with Moodle, Wikipedia, or any other flavors of WIki. You will be amazed at the ease and effectiveness of the digital collaborative approach.