I did an assignment in Creative Writing called "Where Do Good Ideas Come From?" and my students had four reading/listening options; I'll list them here, but since you're not taking my class, I'll also give you the thesis of each-- they are fascinating if you're into this kind of thing:
1) "Groupthink" by Jonah Lehrer: a New Yorker article on how traditional brainstorming does NOT work, and how good ideas are usually formed through debate, criticism, and the random collaboration of the right kinds of people;
2) Slowing Down: TED Radio Hour, especially the segment "Can Slowing Down Make You More Creative" by Adam Grant: this podcast examines the links between procrastination and creativity, and the problems and pitfalls with efficiency and getting things done early;
3) Song Exploder: Weezer . . . Rivers Cuomo reveals his songwriting process and it is nothing like you'd imagine, especially for the front man of an emo band-- definitely worth listening to, whether you're a fan of Weezer or not;
4) Flash Forward: The Witch Who Came From Mars . . . an investigation on the future of creativity, and how collaboration with computers might boost our creative powers and send our writing process hurtling into unknown domains.