Hokkaido University

http://www.hokudai.ac.jp/en/index.html

City of Sapporo

http://www.welcome.city.sapporo.jp/english/index.html

Sapporo Tourist Association

http://www.sta.or.jp/english/

Hokkaido Tourism Organization, Inc.

http://www.visit-hokkaido.jp/en/

JR Hokkaido

http://www2.jrhokkaido.co.jp/global/index.html