Asian Development Bank
This site describes all aspects of this bank's work. This not only
includes information about themselves, but also includes business
opportunities, news releases, extensive information on their
projects, and their work with law and development. There is also
extensive material on their publications.
For many countries in the region, they offer fairly lengthy time
series data on national accounts, the financial system, trade, and
other indicators. Data is also available in spreadsheet format.