"I have a huge collection of fighting game backgrounds as gifs. Figured you guys might appreciate it."
User-submitted inspiration for comics and art: Poorly-drawn cartoons inspired by actual spam subject lines (prev), and more refined comics from "normal" text spam text. Cartoons drawn from titles sent to one Sam Brown (pseudonym of Adam Culbert). Artists send artwork, someone else adds the text. Submit a video game title and description and get the box art made for you, courtesy of MeFi's own cheap paper [via mefi projects].
Wonderful Nintendo art! A deviantArt user has taken action shots from NES games and placed them in real world scenes. Just a few: SMB 3, Streetfighter, and Excitebike. But be sure to check out the whole gallery.
The website of artist Suzanne Treister holds many treasures, such as watercolors based on NATO's item codification system, reimaginings of the front pages of various newspapers as alchemical drawings, invented Amiga videogame stills and, my favorite, the huge images from Hexen2039 - new military-occult technologies for psychological warfare. She's also the director of the International Corporation of Lost Structures and the Institute of Militronics and Advanced Time Interventionality, an organization committed to time travel based research since 2005. Rumor has it that Treister and IMATI star researcher Rosalind Brodsky are one and the same person. The Rosalind Brodsky page has a ton of stuff on it. Here's a small sample: Time Travel Equipment Designs, Brodsky's Delusional Watercolours, Biography of Rosalind Brodsky and Time Traveling Costumes.