WebJunction - Water Resources -- Government Information in the 21st Century

Tutorial - NWISWeb Real-time Stream Flow Data
http://nwis.waterdata.usgs.gov/tutorial/realtime_streamflow.html

Training Module - Introduction to Watershed Ecology
http://www.epa.gov/watertrain/ecology/

After completing this training, the participant should know the basic biotic and abiotic components of watersheds, the basic natural processes and interrelationships occurring in watersheds, and how watershed structure and functions may vary in time and space. Some background in the life sciences is helpful for comprehending this material, but not required.

Training Module - Undertanding Lake Ecology
http://waterontheweb.org/under/lakeecology/index.html

Primer - introducing the basic concepts necessary to understand how lake ecosystems function

Training Modules - Water on the Web
http://waterontheweb.org/index.html

WOW is a complete package containing two sets of curricula, data from many lakes and rivers nationwide, extensive online primers, data interpretation and Geographic Information System Tools, and additional supporting materials.