droppin' science IS dated, I've heard of check the technique' haven't read it yet though. I may drop the passages I used droppin' science as a reference, it wasn't that many.
a few more books i used: Bum Rush the Page:a def poetry jam, and Black Noise. Soul on Ice, Women Culture, Politics(Angela Davis)
It was on how the Black Power Movement spawned Conscious Rap. I gotta upgrade my books though...