Colorado State University (CSU) Engines and Energy Conversion Laboratory

Website: http://www.engr.colostate.edu/~allan/engines.html

A valuable resource for those studying heat engines. This site has a number of great animations.

Guided Studies & Strategies: http://www.studygs.net/

This is an extremely useful, broad and informative website which is a MUST to read for those academics involved in Guided Study or their students.