Here is a set of lecture notes
for a course at Simon Fraser University given by David Boal. This course is somewhat similar to PHYS 206, but at a somewhat less advanced level.
Here is a link to a MIT course on classical mechanics.
The site also contains a link to a PDF version of the book by the instructors
Jack Widom and Gerald Jay Sussman, and to Scheme/Linux based software. The course
is at a more advanced level than PHYS 206, in particular it attempts formulate
the mathematics more rigorously than I attempt to do.
The pendulum lab of Franz-Josef Elmer of theUniversity of Basel
offers a very good interactive review of the forced pendulum (lecture 16).
The Mathematics Department of the University of Dundee maintains a very useful
website with lots of links to available software
including Maple software.
