CNET News has an in-depth preview of Glitch, a Web-based social MMO currently in alpha testing at Tiny Speck, a gaming start-up launched by Flickr co-founder Stewart Butterfield and a few partners. They say Glitch is "built around sending players billions of years into the past to develop the optimistic future that today seems increasingly unlikely." They have more on the game's structure and concepts, as well as some background on Tiny Speck, and there's more on the new developer in a related feature called Watching the birth of Flickr co-founder's gaming start-up.