Abstract: A method of playing a card game includes the steps of providing a card deck that includes cards having song titles and clues that enable players to guess the song titles, selecting clue givers for giving clues to players to enable them to guess the songs on the cards, awarding points to players correctly guessing song titles, and completing the game when a player receives a predetermined number of points. In alternative embodiments, the card game method may include the use of a single clue giver and players may be grouped into teams rather than playing as individuals.

Abstract: A content targeted advertising performance optimization system and method are provided herein.

Abstract: Powered platforms for various kinds are each characterized by a corresponding measure of fuel economy. Fuel economy credits are provided to a party who contributes a material that effects an improvement in such fuel consumption for a given powered platform. In a preferred embodiment, such fuel economy credits can be traded. When acquired from another party, such credits can be used to offset fuel economy performance shortfalls. The “material” can comprise any of a wide variety of substances, components, assemblies, design specifications, control strategies (including enabling software), and so forth. The powered platforms can include stationary powered platforms or mobile powered platforms.