Two and a half years ago a set of web pages from an alternate reality started popping up on the web, referring to fictitious people, such as Bangalore World University researcher Jeanine Salla, who lived in the year 2142. The pages seemed to have been planted there to provide clues to some ill-defined puzzle. As Paul Cox reported, the Cloudmakers community soon emerged to enable wide open collaboration in solving the mystery. It became apparent that the whole thing was an elaborate game that was designed to promote the Steven Spielberg movie _"AI":http://www.imdb.com/title/tt0212720/_. Interestingly, the ability of the collective pushed the game's designers to dramatically increase the difficulty of the in-game puzzles, to the point that playing alone became simply impossible. Collective Detective is another community that was inspired by this collaborative effort. At any given time members are working on a number of "Cases", including _Metacortex_, a new one I just learned about on Bryan Alexander's weblog. This one is the hidden game for the upcoming movie _Matrix Revolutions_. Bryan has been following the game quite closely. Here are excerpts his first post on that new game: Gotta love the idea of online games fueling the development of collaboration tools and practices. This pushes so many of my buttons at the same time...