Substitute Teaching: Tricks of the Trade
http://www.qnet.com/~rsturgn/

Education World: Substitute Survival: Tools You Can Use
http://www.education-world.com/a_curr/curr260.shtml

A Packet for Substitute Teachers
http://users.erols.com/interlac/subtch.htm

Substitute Survival Kit
http://www.csrnet.org/csrnet/substitute/