From William Gibson's latest.
"But when you look at blogs, where you're most likely to find the real info is in the links. It's contextual, and not only who the blogs linked to, but who's linked to the blog."
It's that connection of like minds (rather than like backgrounds, like opinions or like interests) where the really interesting stuff happens. Blogs facilitate that, but you should ensure that it happens in your business and social life as well.
Addendum: The mad, the brilliant and the depraved who I've met because of this blog are proof of this. I would have provided the relevant links but you know who you are.