Education Policy and Data Center - Data by country, school level, topic. 60 countries covered. From FHI 360, a nonprofit human development organization. See About EPDC.
Eldis - Covers international development issues. Content by topic and country name.
Global Education Database (GED) - Interactive program for accessing education data compiled by USAID from UNESCO. Over 115 indicators, data for 200 countries.
Innovations for Poverty Action - Research covers 21 countries in Asia, Latin America, and Africa
Institute of International Education's Project Atlas - Covers student mobility data, studies on academic migration, and the internationalization of higher education.