Stirling Engines
American Stirling Company, Easy to Build Stirling Engine, Free Energy - Stirling Engine, Genoa Stirling, HowStuffWorks - How Stirling Engines Work, Idaho Stirling Engine Team, Los Alamos National Laboratory - Acoustic Stirling, NASA Glenn Research Center - Stirling, Quiet Revolution Motor Company, Rotary Stirling Engines
Stirling Engine and Steam Engine
Explains and shows mechanics of these engine systems. Includes educational diagrams and photographs.
Wikipedia - External Combustion Engine
Free encyclopedia article covers external combustion engine technology and applications. Addresses background, steam engines, steam turbines and Stirling engines.