Tripped over the Velominati site recently, rummaging through cycle sites as one does, and rather enjoyed their roadie-centric, tongue-in-cheek The Rules. I especially like Rules 5, 9, & 10. Some of them are utter nonsense, of course, and like all things the whole thing should really not be taken too seriously.
Much more laid back, though, is Some answers to just about any bike forum post I’ve ever read over on Surly Bike’s unexpectedly awesome company blog. Surly’s entire website is awesome, actually. I knew they made good bikes, but they make good website too.