• www.wateryear2003.org

• European Water Association

• World Water Day 2004 - Water and Disasters

• Green Cross International

• International Water Association

• Water and Climate

• WaterAid

• World Water Council

• The World's Water - Links

• Alles über Wasser - Das IPN

• Forum Trinkwasser

• Trinkberater

• Wasserwerk

• UNEP-IETC Freshwater Issues

• Grander-Wasserbelebung

• arquus-multimedia

• arquus-energy