Wait, this is pretty much WF everytime someone comes on here and says that they're a chick when they aren't Turbo... or Amanda.
Jackbg: Your site is doomed to failure as an educational site on the simple basis that one dick is not all dicks and different guys will like different things. Because I'd rather not go into the particulars of my pecaddiloes, I'll just say it's like mexican food.
Some people love burritoes with extra jalapenoes, whilst others are a taco + guacamole types.
Now, make it more of a "instructional video" site, with a monthly membership fee, and video techiques, you'll be onto something, but with an entirely different audience.
Remember to make sure the girls are wearing classes, so as to look intellectual, and there's a whiteboard in the background that the camera occasionally pans to to show the diagrams, complete with coloured arrows and decently detailed anatomical diagrams.