Yelp.com

Another addition to the Web 2.0 list of services, Yelp.com is a great site to get independent, sincere reviews of restaurants, tourist attractions, etc. from nearly all major U.S. cities. The site has a "community" type feel to it, and, if it hasn't become mainstream, it may do so soon. Forbes had a nice little article on the founders and their burgeoning site.