Note: these databases are not indexed in the Multisearch!
Europa World: Contains detailed information about countries and international organizations worldwide.
Covers political and economic information in over 250 countries and territories, from Afghanistan to Zimbabwe.
CRS Reports: factual reports from the Congressional Research Service, a non-partisan research group for Congress.
Statista: A statistics portal that gathers data on more than 80,000 topics from a wide variety of sources. Includes market research, consumer and industry reports, and more.
IMF eLibrary: Contains documents published by the International Monetary Fund on all countries.
OECD iLibrary (Organisation for Economic Co-operation and Development) : Contains extensive statistical data which can be downloaded into spreadsheets. The database is especially rich in annual economic surveys of member countries, industry reports, and statistical reports.
UN iLibrary: Searchable database of UN reports organized by country and theme.
UN Statistical Yearbook : Easy to navigate Yearbook of country statistics.
For more specific statistics (like education, finance), you can search the UNdata website. It includes links to the online statistical abstracts of most nations.