Computers

Good introduction, explains call-with-current-continuation function and how it works. Compares to exceptions in languages Java, C++, C's setjmp() and longjmp(), problems of lexical versus dynamic scoping with continuations. Very informative, more so for intermediate Scheme programmer trying to understand language's heart.

A meta-resource maintained by Shriram Krishnamurthi for people interested in Scheme as a tool in education.