General:

American Chamber of Commerce in Japan http://www.accj.or.jp/accj.or.jp/content/01_home

GIOSS-Net – Government Information Online Service System http://www.gioss.or.jp/

Japan Center for Economic Research
http://www.jcer.or.jp/

Japanese Government Publications
http://www.gov-book.or.jp/

Keidanren
http://www.keidanren.or.jp/

Local Government in Japan Links
http://www.nippon-net.ne.jp/cgibin/search/mapsearch/nn_MapSearch.cgi

Postwar Formation of Japan Databases
http://www.ioc.u-tokyo.ac.jp/~worldjpn/

Legislative:

Prime Minister of Japan and his Cabinet
/http://www.kantei.go.jp/

Diet Lower House/House of Representatives http://www.shugiin.go.jp/index.nsf/html/index.htm

Diet Upper House/House of Councillors
http://www.sangiin.go.jp/

Diet Meetings Reports
http://www.kantei.go.jp/jp/kakugi/index.html

Special Hearings (Shingikai) Reports
http://www.kantei.go.jp/jp/singi/index.html#gaikyoku

Courts:

Supreme Court
http://www.courts.go.jp/index.htm

Statistics:

Japan Statistics Research Institute, Hosei University http://www.mt.tama.hosei.ac.jp/toukei/index-e.html

National Institute of Population and Social Security Research 
http://www.ipss.go.jp/index-e.html

JPOLL - Roper Center Japanese Data Archive http://www.ropercenter.uconn.edu/JPOLL/home.html

Statistics Bureau
http://www.nichibenren.or.jp/

Columbia University Center for Japanese Legal Studies http://www.columbia.edu/cu/japanlaw/

Japanese Legal Research, University of Washington http://lib.law.washington.edu/eald/jres.html

Ohara Institute of Social Research
http://oohara.mt.tama.hosei.ac.jp/

Working Women’s International Network
http://www.ne.jp/asahi/wwn/wwin/