Old Game Mags is a Tumblr that looks at the way game culture was disseminated before the widespread acceptance of the net: through specialty, hobbyist print magazines. It features snapshots from the past such as the obligatory fan art pages, covers, dev interviews, reviews, advertisements, and special features. The site has fairly regular updates, and features high quality scans.
Obscure Videogames presents obscure Japanese videogames as gorgeous animated gifs.
Do you like cats? Do you like videogames? Then you'll love cats in videogames (SLTumblr).
Brother Brain is an artist who makes colorful, vibrant, seamlessly looping animations from classic video games. Click on an image for a larger version, and an annotation of the game that the image comes from.
When kevin wins, the planet loses! is a tumblr that collects pixel art from a variety of videogames to showcase the beautiful work that lies in the background of the action. [more inside]