Dictionary of Algorithms and Data StructuresIn case you want to look up an algorithm...
jfdube's Blogjfdube is Technical Architect at Ubisoft Montreal
Stack OverflowThe definitve site for all kind of programming questions
Sutter's MillHerb Sutter is one of the leading authorities in C++ Development

Tools / Engines / Libraries

Unity 3DGreat engine for smaller games or prototyping
Unreal Engine 4Cutting Edge Game Engine


Khan AcademyIt was never easier to learn stuff...
TEDGreat people sharing great ideas