AllMusicThe All Music Guide is one of the mos comprehensive resources of its kind. Virtually all types of music may be found here -- rock, country, jazz, classical, blues, world music, folk, bluegrass, rap, reggae, vocal, gospel, easy listening, and new age, among others. AMG offers "...reviews, biographies, ratings, images, titles, credits, and thousands of descriptive categories." One of the more useful features is the search bar, which allows the user to search by artist, album, style or recording label.