This is a virtual stream monitoring training. This is an excellent way to learn about monitoring before getting out into the field. If you are not sure what monitoring involves, this website should provide you with a basic introduction.
This is the main Save Our Streams (SOS) page. It provides excellent overviews, descriptions, pictures, and keys. Lots of links to related resources.
Discusses the connections between macroinvertebrates and water quality. Links to other resources, especially for teachers.
This is the EPA's Volunteer Stream Monitoring site. You can download copies of The Volunteer Monitor, The National Newsletter of Volunteer Water Quality Monitoring. This page contains many excellent links to resources and related programs.
Fairfax County's Stream Protection Strategy. Learn more about what Fairfax County is doing to protect our streams.
The Watershed Game - interactive game about watersheds for all age levels
Interactive Macroinvertebrate Key and other excellent Watershed Activities for students and adults. HIGHLY RECOMMENDED FOR NEW MONITORS
National Park Service Watershed Activities - Bridging the Watershed
Useful Websites for Urban Watersheds
Monitor's Handbook
The Land Use – Water Quality Link: Resources compiled by Molly Beitzel, GMU student
Articles related to streams and watersheds:  
Clean Streams. County to develop watershed plans
Bay Preservation Forces Search for Perennial Streams. Fairfax County needs better maps to save streams.
Volunteer Biological Monitoring: Can It Accurately Assess the Ecological Condition of Streams? Sarah R. Engel and J. Reese Voshell, Jr.. 2002. American Entomologist 48 (3): 164-177