Boogieplay, an RSS search engine that presents results as a checkerboard with 10 spaces. I don't know that the format works, but some entries do seem to jump out at you in this context, such as a rant on Gammatron from a search for the keyword RSS:
Hey, A-list uberblogger dickheads, if you're going to drop your RSS feed in the middle of the night and replace it with your snobby atom feed, that's fine, but how about a note in your RSS feed? Syndication is supposed to make things easier for me, so when I'm tracking 100+ feeds I'm not going to waste my time checking your site every day to see if you really didn't post, I'll just throw you on the junk heap. PLONK, PLONK!