The Mahalo Top 7
- Wikipedia: Waterfall
- World Waterfall Database: View Waterfalls by Continent
- WorldWaterfalls.com: What is a Waterfall?
- Kent NGFL: Waterfalls
- Geology.com: Learn about United States Waterfalls
- Latvia State Geological Service: Highest Waterfalls of the World
- The Northshore Escape: The Geology of a Waterfall
Waterfall News
- Google News: Waterfall News
- FOXNews.com: Art Project to Put Waterfalls in New York City River (2008)
- National Geographic News: "Lost" Giant Waterfall Discovered in California (2005)
- NewScientist: Fatigued Neurons Explain Waterfall Illusion (2003)
Waterfall History and Background
- Eastern Waterfall Guide: Waterfall Classification
- MountainNature.com: Over The Lip - Mountain Waterfalls
- Garden-Fountains.com: What is a Waterfall?
- Watershed Hydrology and Geomorphology: Waterfall Research
- The Field Naturalists Club of Victoria: Geology Group: Waterfalls (22 KB)
Waterfall Educational Resources
- Kids' Turn Central: Walk by the Falls
- BBC: Waterfall
- Crayola: Shimmering Waterfall Lesson Plan
- Crystalinks: Waterfalls
- Planete-energies.com: Hydroelectric power: How Does Hydroelectric Power Work?
Waterfall Travel
- Eastern Waterfall Guide: Waterfall Tips and Hints | Finding Waterfalls
- Garry Black Photography: Tips and Techniques: Waterfalls
- Lonely Planet Search: Waterfalls
- Frommer's Search: Waterfalls
- Fodor's Search: Waterfalls
- GORP Search: Waterfalls
Waterfall Photos and Videos
- Google Image Search: Waterfalls
- Yahoo! Image Search: Waterfalls
- Live Search Images: Waterfalls
- YouTube & Google Video Search: Waterfalls
- Yahoo! Video Search: Waterfalls
Waterfall Blogs and Forums
- Google Blog Search: Waterfalls
- Kathika.com: 29 of the World's Most Amazing Waterfalls
- PDX River Explorers: Waterfall Geology
- WorldWaterfalls.com: Waterfall Forum
Waterfall Fun Stuff
- Andrew Lipson's Home Page: Escher's "Waterfall" in LEGO
- JigZone: Waterfall Jigsaw Puzzle
- California Waterscapes: How to Build a Waterfall
- Princeville Ranch Stables: Waterfall Swim Picnic
- Suzy's World: Waterfall
Waterfall Books and Merchandise
- Google Product Search: Waterfall Merchandise
- Amazon.com: Waterfall Merchandise
- eBay: Waterfall Merchandise
- Barnes & Noble: Waterfall Books