I'm going to put this somewhere more permanent at some point, but for now it's here. The title says it all:
Paul Graham (some guy who writes about funny programming languages) -
What You'll Wish You'd Known. Read this before I started college, couldn't tell you how I came across it. Probably linked from some dorky math site or something. Anyway, I'd probably credit this with making me from a mediocre high school student into a decent college student. (There are some things that I wish I had done while in college that I'd want rectified or at least re-examined, but I actually have a lot of thoughts on that. And they're not as exciting as you think.)
Karl Paulnack -
Art is therapy for the soul. Props to Catherine (who I haven't seen in years) for posting this on Facebook.