Another programmer and me are just going into beta with project, I will let you know when the(my) next big thing launches. I would beta test with dp members, but there are far to many crafty individuals here
I really doubt it. The reason Youtube, myspace, and facebook took off was because of their unique platform. Now that the social networking site has been "out there", it doesn't have too much room to grow. Basically it's time for something completely new.
Wel.. my next big thing is coming soon with a unique concept. From the bove three I would say Youtube.