City of Yokohama
http://www.city.yokohama.jp/front/welcomeE.html

City of San Diego
http://www.sandiego.gov/

Yokohama Association for International Communication and Exchange (YOKE)
http://www.yoke.city.yokohama.jp/indexe.html

Yokohama Convention and Visitors Bureau
http://www.welcome.city.yokohama.jp/eng/tourism/

San Diego Convention and Visitors Bureau
http://www.sandiego.org/

Sankeien Garden (in Japanese)
http://www.sankeien.or.jp/

Japanses Friendship Garden of San Diego
http://www.niwa.org/

Minato Mirai
http://web.infoweb.ne.jp/mm21/english