The Encyclopedia of Japanese POP Culture
A few points of interest are full articles on Hayao Miyazaki, Osamu Tezuka, Katsuhiro Otomo, Ultraman, Rose of Versailles, and Godzilla. Each headline is an introduction to a satellite of related subjects in that class. Other categories covered include comedians, fads, games, technology, scandals, martial arts, and manga.
J-pop fans aren't left out, either. Articles cover the Juliana's Tokyo club scene, karaoke, the yearly Kohaku song competition, j-pop producer god Tetsuya Komuro, techno pop masters Yellow Magic Orchestra, Yumi Matsutoya, The Southern All-stars, and idols Seiko Matsuda, Pink Lady, and Smap. In fact, read in the following order, these pages give the first real history of j-pop from the 50s to the mid-90s available in English