Resources for information on hydropower and hydroelectricity:

• Hydroelectricity - Wikipedia, the free encyclopedia
• Hydropower - Wikipedia, the free encyclopedia
• Hydropower at a glance (for kids)
• How Hydropower Works (easy math for estimating power output from a hydroelectric plant)
• Hydropower Basics (US Department of Energy — lots of good info)
• Hydro Power - Generating electricity from river flow
• Micro Hydro Power - Pros and Cons
  
• How Hydropower Plants Work (from howstuffworks.com)
• Walk through a hydroelectric project
• SeaGen Gets Ready To Go (news on a NEW ocean-tidal based hydro power generator)
  
• Hydroelectric Footwear
• The Gorlov Helical Turbine (GHT)