On AE, here are some shorter pieces: I, Pencil (short essay), Grayson’s Human Action Comics, and some Tom Woods video goodness.
On AC, I recommend: The Obviousness of Anarchy and really all of Hasnas’s essays on that subject. Also my essay here (because it seems to short-circuit some of the needless anarchy-minarchy debates). At least on political theory, don’t read more than you can think through!