I don't have a huge interest in social networking, but the landing page doesn't give me any compelling reason to sign up or learn more (other than knowing you'r

I don't have a huge interest in social networking, but the landing page doesn't give me any compelling reason to sign up or learn more (other than knowing you're an HN'er). I might not be the target demographic (somebody without a Facebook account), but it's not immediately clear to me what your network does or why I should want to use it.