Bob Moore is currently working as a game designer at Multiverse, a virtual world platform company. Applying the findings and methods of sociology, he designs virtual worlds for player sociability and usability. Prior to Multiverse, Bob worked as a researcher at the Palo Alto Research Center (PARC) where he started the PlayOn project and collaborated with Nic Ducheneaut, Eric Nickell, Nick Yee, and Cabell Gathman. PlayOn examined social life in multiple virtual worlds using micro-interaction analysis, virtual ethnography, and social network analysis. Bob has published several papers on the design of avatar interaction systems and virtual public spaces in academic journals and has spoken at numerous conferences on virtual worlds.