My "edgy" days were about 8 years ago, when I read The God Delusion and began to identify as an atheist. I was on-board with Hitchens' anti-theist rhetoric, and saw those who were religious as ignorant and needing to be reformed, or however you want to frame it. I was never "militant" and let people go about their own beliefs, but I internally (unfairly) judged a lot of people back then.
Essentially, I took in almost everything put out by these three:
Thankfully, I've grown since then and have a much greater understanding of the world than I did when I was so "free-thinking." I did learn a lot during the phase, but I am glad it was just that.
Oh, just remembered: I also liked (and still kinda enjoy)
Coming Undone by Korn and
Down with the Sickness by Disturbed. I'd attribute the latter to the Dawn of the Dead remake though.