http://www.ntt.jp/japan/index.html
This site provides comprehensive information about Japan available in English or Japanese. Topics include What's New in Japan, National Anthem, Clickable W3 Map for Japan, Japanese Weather Information, National Holidays, Kotowaza (Japanese proverbs), Japan National Tourist Organization, Traveler's Japanese, J-League Forum (Japan Pro Football League), Sumo Information, The Constitution of Japan, Online Publications, and more.