Jason recently linked to a 2003 interview with Ludicorp's Stewart Butterfield about Game Neverending, a browser-based MMORPG/MUD game/universe that had a popular public prototype, but was cancelled due to the raging popularity of Ludicorp's other brilliant product. I've been thinking a lot about GNE lately, what it was and what it would have been, and why.
Compare this 2005 interview with Butterfield on Flickr. Of all of the big ideas in each of these projects, the ones they share are perhaps the biggest.