Essential Books :
The Woman Racket (Steve Moxon) - Explains why and how women have the power in society in terms of evolutionary psychology and a plethora of well researched facts, figures, and arguments.
The Myth of Male Power (Warren Farrell)
The Second Sexism (David Benetar)
No More Sex War (Neil Lyndon)
Sites to bookmark :
Angry Harry - Father of the online men's rights movement. Not updating so often these days but a massive archive of essential reading that will keep you going for weeks.
Reddit Men's Rights - full of trolls, anti-sex positive views, and suspect moderation policies, but still an essential resource and the largest and fastest growing men's rights community online.
Essential Online Articles, PDFs etc :
Why Feminism is Illogical, Unnecessary, and Evil (Satoshi Kanazawa )