Metromix is a joint venture between Newspaper publishers Tribune Co. an Gannett. A guide to local restaurants, bars and clubs, events, concerts and movies, Metromix is available now in Chicago, Los Angeles, New York and six other large markets on the East Coast. The company will expand to launch a national network of local entertainment websites in 25 of the nation's top 30 markets and in a total of more than 40 markets by the end of 2008.