Scenario

It's the second day of the new semester, and Sally Student decides that it's time to get organized. She loads up HAAG, and goes to add a new class. She types in 6.005, but notices that someone else has already added the assignments for that class. She subscribes to this feed, saving her the work of entering all of the assignments. Sally also wants to keep track of her assignments for 6.813, but it appears that no one has created an assignments feed for this class. Sally decides to spend 10 minutes adding all of the assignment for the term, and then makes the feed public for others in the class. Sally now has all of her assignments in one location, and saved herself a bit of work.

A few hours later, after finishing her first pset, Sally goes on her laptop and marks that assignment as done. She decides to include a personal milestone for the 6.005 project, and creates an private assignment, hidden from everyone else.

The next day, after finishing a pset with a friend, Sally visits HAAG with her iPhone, and removes the pset she just finished. She can see that she doesn't have anything else to do until the next week, and decides to go watch tv instead.