University of Nebraska
University of Nebraska?lincoln: Mass Moment of Inertia
This is an excellent site that explains how to compute Mass moment of inertia
University of Guelph
University of Guelph: Physics Tutorials: Moment of Inertia
This site has a list of moments of inertia for various objects.
Other
Quiz Tree: Units of Measurement
This site offers free multiple choice quizzes for mastering measurement conversions. Metric and customary systems are both included.