Um, there’s this thing called the penisblog where you match the penis to the blogger. Found it via Metafilter. I don’t think I’d sign up even if I had a penis, though they kind of parallell the honesty discussions of recent times:
What do we have to hide if we’re supposedly letting it all hang out via our weblogs?
Our tits, maybe? Oh, no, wait, I know, it’s our bra straps!