No one will believe me, but I was way ahead of facebook with the niche, school-specific social networks. I created sdsYOU.com running on phpNUKE (mysql/php) in 2005 and it could have been it! Unfortunately, I didn’t have the time, or money, to make it what I wanted it to be….and it fell by the wayside. I had a small, but decent user base, and teamed up with some fraternities to sponsor parties, etc…but my fraternity involvement among other things got in the way. I still wonder what would have happened if I got this thing off the ground….