You forgot the answer "Lots and I try to read every post or I don't subscribe to uninteresting blogs." I follow about 52 blogs right now covering artists, crafts & tutorials, cooking, photographers, journals on daily life and new sci-fi short stories, etc. I try to pair the list down regularly, but it's just *so hard!*
That's not even counting daily comics (I only subscribe to two, right now, but they're worth it!) and weekly comics I read, which may have bi or even triple postings depending on how professional they happen to be. Or the fanfiction I keep track of with blogger or via my e-mail account.
Whenever I add someone to my flist, I always add their journal and scraps feeds because you never know when someone's got something cool to say (like you). But most of the time? I wind up just glancing at who's posted something, and delete most of 'em.
having said all that, I saw yours man. Pesonally I don't think comic stores will ever disolve or turn into ipod depots. There's just no substitute for the nebbish rapport between two face-to-face nerds man. You can't replicate that sort of cultural/intellectual convergence on a website.
I follow a fist full of podcasts, like Bioshock, and Gary Schyman (the cheif composer for the game), and some anime otaku podcasts that review animes that I might want to view; but otherwise, no, I generally avoid podcasts. I do relish the fact that podcasting hearkens back to radio shows and theatre (like with concepts like FETIDUS, which is a zombie/meta-human future film noir)__but I still abstain from gorging myself on a surplus of shows, because I'm already an unscrupulous media junkie.
politeness is wack. I follow a lot (a whole lot) and I read anything that looks interesting. I work long hours, and reading blogs when I take breaks is my primary entertainment and source of information.