Siteswap FAQ - Provides answers to common questions about siteswap notation. - http://www.juggling.org/help/siteswap/faq.html
The Science of Juggling - A paper from Scientific American, November 1995. Includes an overview of learning mechanisms, robot jugglers, and mathematical theory. - http://www2.bc.edu/~lewbel/jugweb/science-1.html
Introduction to SiteSwaps - A concise introduction to the written juggling notation called SiteSwaps. - http://www.cix.co.uk/~solipsys/new/SiteSwap.html
Juggling Drops and Descents - Complex math and applications to juggling patterns. A joint research by Joe Buhler of Reed College and Ron Graham of AT&T Bell Labs. - http://www.cecm.sfu.ca/organics/papers/buhler/