As part of the Managing online communities course, students have a semester-long assignment to blog weekly. This is to force the habit of writing on a regular basis and feeling the experience for themselves. As a Community manager they would have to try to encourage other people to blog regularly, but as most bloggers know (most blogs fail due to lack of updates) it isn't trivial to write on a regular basis. When you hit the workforce, it becomes even more difficult.
In any case, all our MIS 300 blogs can be read by the public. I think only the first 38 of those blogs are operational (the number of students we have). You'll find varying degrees of creativity and coverage, but that is to be expected.
Other tools-based assignments include those on forums, group editing a wiki, and creating a podcast. I'll try to point to those when they are ready.