Biography sites

• 4,000 Years of Women in Science
• A&E's Biography Database
• Faces of Science: African-Americans in Science
• Great Economists & Their Times
• National Women's Hall of Fame
• Nobel Prize Internet Archive
• Rulers - includes comprehensive lists of heads of state or government (including unofficial or de facto leaders) of all countries and territories back to 1700. Also lists leaders of major international organizations. There are brief biographies for many, but not all, of the leaders.