This looks more like a blog on first sight than a social network, because of all the wasted space.
Doesn't mean you can't have whitespace or anything, but it looks like you threw a 'social network' plugin on a wordpress theme and called it a day...
I don't think Bitcoin needs any social networks right now, it just needs some good technical analysis of Bitcoin. Right now we have a ton of blogs that just report bitcoin in the news or things that happen in the community. There are more interesting ideas to develop right now.