Question : What is considered the leading social networking software?
So far, in my searches nothing really stands out but I’m assuming there is a “grand leader” out there. Can anyone point me in the right direction?

I’m looking for great features for a new site I’m launching- innovative, video sharing, etc. Maybe youtube compatible even. Suggestions?
social networking software

Best answer:

Answer by The Unit
MSN, MySpace, Orkut and Youtube are greatest networking share nowadays.

You can try to do something like that if you want.