Here’s a list of open datasets:
World Bank
data.worldbank.org The Data Catalog provides download access to over 2,000 indicators from World Bank data sources.
Other
Data and Statistics – Pan American Health Organization
National Data Catalog (US) The National Data Catalog is an open platform for government data sets and APIs. It makes it easy to find datasets by and about government, across all levels (federal, state, and local) and across all branches (executive, legislative, and judicial). The data is imported from multiple sources and curated by our staff.
Some useful sites that either offer open data, or links to sites with open data:
Comprehensive Knowledge Archive Network
Search the world’s government data at The Guardian’s gateway: Governments around the globe are opening up their data vaults – allowing you to check out the numbers for yourself. This is the Guardian’s gateway to that information. Search for government data here from the UK (including London), USA, Australia and New Zealand. More to come