Bank of Japan

Besides information about the bank, this site offers extensive information on their publications (including CD-ROMs), a list of dates for press releases as well as press releases and speeches; current exchange rates; reports (including the "Monthly Report of Recent Economic and Financial Developments," "Quarterly Economic Outlook," the "Annual Review of Monetary and Economic Developments," the "Monthly Economic Review," and the "Flow of Funds"). Data (including long time series) includes the money stock, TANKAN Outline ("Short-Term Economic Survey of Enterprises in Japan"), various price indices and interest rates, foreign exchange rates, and data from financial institutions.

http://www.boj.or.jp/en/index.htm