According to an article published by the Rocky Mountain News, DirecTV and EchoStar's Dish Network have gone to court in a dispute over the use of Internet search-engine keywords, one of the hottest areas in advertising and murkiest corners of trademark law. read more..

Content source: http://www.rockymountainnews.com/drmn/tech/article/0,2777,DRMN_23910_5243215,00.html