A Straight Geek Male's Guide to Interaction with Females by timjr -- I liked a lot.
And bonus in the comments that made me laugh:
Hmm, I had been thinking about writing such a post. Now I can be lazy and just link it far and wide across the land, spreading it to our less enlightened brethren, who still live in darkness and filth.
And darkness caused by filth.
Seriously, guys, deodorant is cheap. I shouldn't be so much higher on the ol' attractiveness scale just because I follow basic hygiene.
--vampirehunter85, on hygeine, here
ETA: (I'm like a junkie)
"sex-positive". what a loaded term by synedochic -- fantastically informative, insightful, and explanatory for those, like me, who were geeky and yet managed to not stumble over geek culture all that much in the real world. And other stuff. I am explaining it badly. Go read.
Okay now. Is it just me, or--I have to admit, I'm almost grateful for this mess. In the last three days I've learned a *lot* and more importantly, learned how very much I actually don't know (which is far, far more). I'd say it's embarrassing, but I'm too excited at the wealth of information being basically handed to me as a gift to even go there. Some of this is primer level stuff, some of it is far above my current understanding, and none of it beyond what I can learn. So you know, thank you internetz. The responses have been awesome.