Yesterday I unsubscribed from a few blogs; I realised that there was not much takeaway from them, for various reasons: scatological humour and general obscenity (Rude Pundit, Bile Blog) stop being funny beyond a point, reading about stuff already covered elsewhere (Common Dreams, Gorilla in the Room) is actually not a very productive use of my time, and some blogs are so rarely updated (OSI News, What's Happening in Smalltalk) that you are not missing much.
I would have unsubscribed from Bruce Schneier's blog as well -- squid blogging? Yeah, I care *so much* about that -- but his post on the value of privacy convinced me that there is still good stuff there.