The Nielsen Co. announced Monday it has opened up its new social networking Web site irreverently called Hey! Nielsen (www.heynielsen.com
) to the public. The site, which gives lovers of pop culture a place to sound off about TV shows, music or movies, has been tested internally within the Nielsen Co. for the past few months. Nielsen, the parent company of The Hollywood Reporter, also plans to launch a Spanish-language version of the site, Oye! Nielsen, in January. Initially, Nielsen expects the site will be able to provide demographic information, comments and scores for specific entertainment properties that could be used as a complement to Nielsen's traditional research services such as TV ratings, SoundScan (music), Nielsen EDI (box office information) and other services.