University of Calgary
Univeristy of Calgary: Cycloalkanes
A brief description of cycloalkanes. Properties, chemical make-up, and structure provided. Brief introduction to nomenclature of cycloalkanes and generic formula. Interactive piece requires x-pdb plug-in.
Other
University of Wisconsin: Cycloalkane Conformation
Comparison of straight chained and cycloalkanes. Bond angles of a variety of structures presented. Equatorial and axial positions shown. Plug-ins required for interactive illustrations.
McGraw Hill
Oregon State University: Alkanes and Cycloalkanes
This site is from the Organic Chemistry Online Learning Center and provides useful information on both Alkanes and Cycloalkanes. The information is not too in-depth, but a background knowledge of the subject would definitely be helpful.