River Pollution - Brief introduction to river pollution and protection from the UK Wildlife Trusts. Covers sources of pollution, acid rain, legislation, practical ways to help, and further reading. Floating Down the River - Wide range of information about the River Thames in England. Includes geology, geography, statistics, navigation, history, pollution, locks, origins of place names, and boat mooring information. River Watch Network - Organization encouraging communities around the world to monitor, restore, and protect the world's rivers.
Site includes details of programs, success stories, membership details, and resource catalog.
River of Vitriol - Article from Scientific American describing the unexpected lifeforms that thrive in Spain's Rio Tinto river, despite its notoriously acidic water. 2000 - Short introduction to rivers from the Columbia Encyclopedia. Covers definition of a river, erosive processes, and classification, and lists some important river systems. RiverResource - Aims to inspire people to learn about rivers and to share that information with others. Includes a very comprehensive list of river links, bibliography, and database of classrooms studying rivers.