Recursive Instruments has superb pictures of what they call "Ink printing the primitive Metaverse" (prints from their current show at the Aho Museum in Second Life):

Entitled Recusions, the works depict situations you will find every day in Second Life, from play to punishment. The trappings of technology are both removed and exploited to examine the evolution of media’s effect on the evolution of self. Snapshots from Second Life are digitally altered to allow a Computerized Numerical Control (CNC) mill to sculpt their contours. The result is a woodblock used for traditional ink printing