Rakuten Travel (Booking Hotels / Rental Cars)
http://travel.rakuten.co.jp/
Japan Meteorological Agency 気象庁 (for updates in Earthquakes, Tsunami & Volcano Eruption)
http://www.jma.go.jp/jma/index.html
Japan Mapion 都道府県別
http://www.mapion.co.jp/
Walker Plus 日本最新流行情報
http://www.walkerplus.com/
Japan National Tourist Organization (JNTO)
http://www.jnto.go.jp/
Japan Postal Code Search 郵便番号検索
http://www.post.japanpost.jp/zipcode/
春:Sakura Info 桜前線 (by rurubu)
http://www.rurubu.com/season/spring/sakura/
夏:Summer Fireworks 花火大会 (by rurubu)
http://www.rurubu.com/season/summer/hanabi/
秋:Red Maples 紅葉情報 (by rurubu)
http://www.rurubu.com/season/autumn/koyo/
冬:New Year 年末年始/初詣 (by rurubu)
http://www.rurubu.com/season/winter/oshogatsu/
冬:Christmas Illumination イルミネーション (by rurubu)
http://www.rurubu.com/season/winter/illumination/