Other
Northeastern University: Teach Yourself Scheme in Fixnum Days
A beginner's tutorial for the Scheme programming language.
Other
Schemers
This site contains many links for the Scheme programming language, including downloads, books, blogs and tutorials.
Other
Helsinki University of Technology: Scheme Tutorial
This is a tutorial designed for a basic programming course using the Scheme programming language.
University of Michigan
University of Michigan: The Scheme Programming Language
A description of the Scheme programming language, including history and sample code.
Wikimedia
Wikipedia: Scheme Programming Language
A Wikipedia description of the Scheme programming language.