If "extremely large" is the criterion for importance or for success, then I guess Wikipedia is to knowledge, what Wal-Mart is to merchandise, or what McDonald's is to nutrition. I think I see the pattern here -- many people enjoy these venues, but arguably none of them are actually good for you or your community. Rutgers, have you asked yourself why you need to "introduce" people to a top 10 website that has had hundreds of thousands of editors for over ten years now? What's next -- a symposium on making toast?