There seems to be a lot of knowledge that LessWrongers have which is fairly awesome, but not particularly well-covered on Less Wrong.
What other sites do people recommend?
I originally came to LW through HN, and Paul Graham was somewhat influential on my early high school thoughts.
I've poked through these a bit on recommendation from other people, and they seem ridiculously useful.
If you want to be super nice, could you link to some of your favorite posts/articles?
Modeled Behavior can be quite insightful, though they post a lot of current analysis. For example his thoughts on obesity are quite clear thinking (example, posts).