Sumanas
Sumanas Inc: Microbial Life: The Winogradsky Column
Nice animation of how to create a Winogradsky column using bacteria from pond mud. Learn how "mud can be mixed with several ingredients to provide food and other substrates for the bacteria to use" to survive.
Science Education Resource Center at Carleton College
Serc: Microbial Life: The Microbes Within: Webquest
A student WebQuest studying the effects of endosymbiosis on reproduction, evolution and human health. Students will investigate the biology an intracellular bacteria and serve on a specialized task force to prevent the next epidemic.