Other uses for Edmodo

As I spent more time exploring Edmodo, I realized that it had could have quite a few Twitter-esque uses outside the classroom. Any current users (or Jeff O'Hara, aka @zemote, one of the cofounders of Edmodo whom I met on Twitter), please chime in with alternate uses you might have discovered as well.

1. An easy communications tool for a school club: Websites are great, email lists are useful, but how easy and quick would it be for a club to share files, post links, and exchange information via Edmodo? If students or teachers are heavy email users, it's easy to turn on email notifications of any type of message sent. Meeting dates and activities can easily be substituted for assignments and appear on the calendar
2. One heck of a PD tool: Teachers can easily interact with each other, administrators, and trainers, getting their professional development materials early as posted files or assignments. All of the websites, related readings, instructions, etc., for professional development among your staff are right there.
3. A project management tool for teams: Teams, task forces, committees, and working groups form all the time in educational settings, yet many struggle with communication more than anything. Edmodo lends itself to both impromptu and more formal interactions, as well as scheduling meetings, assigning tasks/to-do's, etc.
4. A family communication tool: I went to a Clay Night at my 6-year-old's school last night. We had a lot of fun, but I could also imagine an Edmodo night, inviting families to explore the site as an organizational tool and introducing its possible use in schools.

What else can you imagine with my new favorite tool-o'-ed-tech?