Just jumping on the adblocking yea/nay blogging train: I don’t block ads. I could but I don’t bother. Most of the time they don’t bother me unless I’m trying to read a long article, at which point I use Readability, which is infinitely better than an adblocker for that situation.
Note: Readability runs fine on Minefield if you use Nightly Tester Tools to force-install. There’s also a bookmarklet version if you don’t want to install an add-on.