Walt Mueller is a great resource when it comes to understanding youth culture (for parents too, not just "youth workers" who fit a certain mold).
One of their more recent projects is the "College Transition Initiative"
The seminar seems a bit more of a stateside thing (as well as some of the specific cultural challenges in the States vs. Canada), but the articles and books look pretty good.
I'll probably pick one each of these youth or parent books up when it's in the budget. If there's one you'd like to read, let me know and I'll make sure to pick up that one. I'm also going to get Mark Oestricher's "Youth Ministry 3.0" soon too if anyone's interested in that title.