Google public data has now more datasets, and the visualization options are very good. The technology behind the visualization is the one acquired from GapMinder . 

The datasets now comprises:

• World Development Indicators (World Bank)
• OECD Factbook 2009 (OECD)
• Unemployment in Europe (Eurostat)
• Harmonized Index of Consumer Prices in Europe (Eurostat)
• Minimum Wage in Europe (Eurostat)
• Unemployment in the U.S. (U.S. Bureau of Labor Statistics)
• GDP and Personal Income of the U.S. (U.S. Bureau of Economic Analysis)
• Retail Sales in the U.S. (U.S. Census Bureau)
• Population in the U.S. (US Census Bureau)
• Sexually Transmitted Diseases in the U.S. (NCHHSTP)
• Mortality in the U.S. (NCHS)
• Cancer cases in the U.S. (CDC, NCI and NAACCR)
• Education Statistics of California (California Department of Education)