I came here to recommend http://lesswrong.com/, but then I saw that you want to become more knowledgable, not smarter. In that case, your current strategy sounds right to me!
I would really recommend reading LessWrong to pretty much anyone who is able to absorb the material (and willing to put in the time. It's not greatly organised at the moment).
It is, quite literally, life-altering stuff when internalised. At least it was for me.
It is, quite literally, life-altering stuff when internalised. At least it was for me.