BUST is just a must site for me these days. The BUSTcards are awesome. I can't stop sending them to people.
But actually most of my friends are guys. My sister is probably my best friend and I have a few other girl friends but none that I live near. Most of my long term friends who understand me really well are guys. So I've been sending out the "If only we were gay, I'd ask you to marry me in vermont, and we'd start an organic bakery and adopt vietnamese orphans together, but since we're not, let's just celebrate our friendship " card, with frolicking retro girls in tight underwear, to my guy friends. There's probably something odd about this, but they'll "get it" so that's fine.
I also think the Men... If only they had legscard is pretty incredible.