See my reply to tome.
There are lots of good blogs out there. I think a substantial number of bloggers end up getting published in books, and a lot of good writers blog. There is a lot of information out there, my primary point is that you don't have to consume it on parchment for it to count.
Try Roger Ebert's one: http://blogs.suntimes.com/ebert/atom.xml
I am rediscovering what a joy it is to read books. It seems it does take a lot of work to write well. Blog posts, almost by definition, are not meant to be well-written in terms of depth and succinctness.
But, maybe I'm just reading all the wrong blogs.