Gwap is a collection of simple mind games similar to those you would find in the board games section of a store. Each game is played with an anonymous partner and are either cooperative or comparative. According to Carnegie Mellon, who developed the games, the results of each game are used to fine-tune things related to AI, supposedly by creating a snapshot of the thought processes associated with their gameplay. My favorite game is Verbosity, where one player tries to give clues about a word so that another will guess. If nothing else, it's a fun time-waster series with the added benefit of contributions to scientific research.