I have not done this. This is just an idea I have had for some time now.
I work at a k-8 school. Building community and connections among all the students is often a difficult task. What if we created a facebook page for each classroom where projects, success and even failures could be posted. older kids could also incorporate Twitter and Instagram. A goal for every student, every week, would be to identify something great that they noticed about another student. This would build a community within the school of connected students. It would also build habits of using social media to prop people up rather than bringing people down.