Ok, I'm doing a research paper on electronic music, it's growth and sub-cultures it's affilated with (ei: Techno movements, House movements, raves, gatherings, Hardcore scene, ect..) Basically, I'm asking if anyone here could re-direct me toward any good online resorces, books, articles, or video documentries that'd pretain to electronic music, it's sub-cultures and growth.

P.S, I'm also doing a section on hardcore techno and abstract electronic music so if anyone could re-direct me to more indepth knowledge, that'd help out a lot