If we're talking about business networking, I thought LinkedIn was the winner. MySpace and Facebook are both "social networking" in my book, Facebook even mores

If we're talking about business networking, I thought LinkedIn was the winner. MySpace and Facebook are both "social networking" in my book, Facebook even moreso, because I only friend people I actually know (However this could be just because I use it in the college context, not the business context). I'd be interesting if there are different usage patterns based on the main use of the network. I see it as keeping in touch with my friends rather than "networking" in the business sense.