This website is so rad, a searchable collection of teenage girl-next-door pictures. (Pictures are OK, but ads are NSFW.) Now that I don't tutor adolescents anymore, I only get to really mingle with them once a week at the teen dance club. In the meantime, you've got to keep your eyes on the prize and not be tempted to settle for someone your own age.
For guys who prefer that rare combination of a girly face and a plump tight booty, the site is great. Most girls with big butts have manly faces, but it's pretty tough for a high school chick to have a Neanderthal mug.
That'll put lead in your pencil.
As a plus, most of the pictures are from 2004 - 2006, back when everyone was on an energy high. You can tell by the dates on pictures, as well as the presence of low-rise jeans, studded belts, and thongs, which have disappeared since then. It's like some kind of yearbook, only one that you won't mind flipping through years later.