No, not social diseases. Anti-Valentines cards. Check them out. (yeah, so I wrote about them last year. sue me.)
And if those don't get you into the mood enough, you might want to head over and check out Worst. Sex. Ever., an upcoming celebration of bad sex! (I can't make it, because, bourgeois pig that I am, I'm going to Carnegie Hall that night instead. again, sue me.) Real live people I've actually met and know are going to be there, so go be my proxy and give them moral support...
"social" diseases? Did you catch a bad case of political correctness?
Those were swell, but have you checked out http://youyesyou.net/welove/