Gamifying blogging. Floats some students' boats. Extrinsic motivation, can it become internal? I think some of my kids a few years ago really got into the number of edits/editing status as top editor on the wiki, then moved on to just being productive for its own sake.
BUT, I bet there are other badges that you could come up with that would be more meaningful (Questioner, Connector, Etc.) AND they could be bestowed by the kids on each other.
In my opinion this is very true, there are few if any directives on how teachers should be facing the changes in the 21st Century, everybody is still focused on hardware rather than cloud computing and web 2.0.
This isn't just about online learning! How many of these roles do you fulfill as a teacher, "facilitator," or admin? How successful have professional development efforts been in getting teachers to try out new roles? How successful have they been in getting kids to try out some of these roles? What other roles are there for students?