Facebook is the market leader for sure. But its not winner takes all because its just too big of a category for innovation & creativity. Right now my social network for music isn’t on facebook (instead it’s on hypemachine and tumblr). My photo social net is on tumblr and flickr. My social net for television is Boxee. My information social net is Twitter. FourSquare and Twitter are my social net for places & events. The list goes on.

Bijan Sabet, Thoughts about “the winner takes it all”

Interesting take on social networking and the power of Facebook. I tend to agree though, as there will also be power & viability when a bunch of niche users (doesn’t matter exactly how niche) comes together and shares around a mutual interest.

It really comes down to the question: How many users do you need to make your business / project / social network etc. viable, sustainable and hopefully profitable?