My mentor’s site filled with valuable information regarding programming and graphics.
Blog of Michał “Ragis” Król – great designer and my friend. He has a deep insight into game design and gamedev industry.
Source of many gaming- and culture-related information. Worth reading on a daily basis.
A real mine of game development industry information. A must-read regularly.
If you’re stuck with any programming problem – you’re going to find a solution there.
Great analysis about sales, marketing and discoverability of games.