Holy crap. I think you're right. This could explain why I've had two different strangers corner me in the past month (and seen at least two similar pitches on HN), trying to pitch me to work on their pre-funding social network. They "have the secret sauce all figured out", they "just need need a coder to build it". Unfortunately, they "can't really get into details" until I sign an NDA. Needless to say, I still am pretty fuzzy on their secret sauce:)

It all fits though - up until now, I couldn't figure out why random shmoes that don't know anything about technology were getting excited about social networking.

I suspect Facebook/Twitter/Linked In aren't the end of the road for what we call "social networking", but I'll bet it's created by someone with at least some experience in the technology space...