Ducksters
Ducksters: Middle Ages for Kids: Feudal System and Feudalism
Read about the feudal system during the Middle Ages and Medieval times on this site. Learn how feudalism consisted of lords and manors, serfs, and peasants.
Khan Academy
Khan Academy: Focus on Economics: Serfdom
The resource from Khan Academy provides practice questions for a high school world history course. This section assesses students' knowledge of the economic impacts of serfdom during the European Middle Ages.