Ads Based on Mood and Body Language

Ads and emotion.  A popular thought in the media these days.  Technology companies are thinking about it as well:  " ... In an application filed in December 2010 but just made public last week, Microsoft sought to patent an advertising engine that gauges people's emotional states based on their search queries, emails, instant messages and use of online games, as well as facial expressions, speech patterns and body movements. The ad engine is device-agnostic; as Microsoft noted in its application, "client devices" could include personal digital assistants, smart phones, laptops, PCs and gaming devices... "  We discussed these methods with a number of large technology companies that worked with consumer data a decade plus ago.