The Mahalo Top 7
- The New York Public Library: A Hudson River Portfolio: The Hudson River Historical Overview
- Clearwater: The Hudson River
- Wikipedia: Hudson River
- Hudsonriver.com: Hudson River Valley's Information Resource
- PBS: Bill Moyers on the Hudson
- Hudson River Maritime Museum: Scientific America 1909: Henry Hudson and His Exploration of the Hudson River
- American Museum of Natural History: Helping the Hudson
Hudson River News
- Google News Search: Hudson River
- The New York Times: Manhattan Turns to New Jersey to Fulfill Its Need for Electricity (2007)
- Forbes.com: Dredged Waste From Hudson to Go to Texas (2007)
- CNN.com: EPA Vows to Clean Hudson River; GE Opposes Plan (2000)
Hudson River History and Background
- Hudson River Maritime Museum: Henry Hudson and Early Hudson River History
- Hudson Valley Arts and Science: Hudson River at Ossining
- A Virtual Trip on the Historic Hudson River: Natural History of the Hudson River
Early History
- Hudsonriver.com: Hudson River History Tour
- New York Public Library: A Hudson River Portfolio: Travel Along the Hudson
- Hudson River Maritime Museum: Timeline of Hudson River Maritime History
- Upper Hudson Library System: Virtual Voyage of Life: Hudson River History Tour
- Times Union: The Hudson River Chronicles
Modern History
- NOAA: Hudson River Nautical Charts (482 KB)
- U.S. Environmental Protection Agency: Hudson River Clean up
- U.S. Geological Survey: Hudson River Salt Front Data
- Rutgers University: Hudson River Plume
Hudson River Educational Resources
- Scenic Hudson: Education
- The Earth Institute at Columbia University: Hudson River Research
- American Rivers: A Lesson Learned From the Fort Edward Dam Removal: Hudson River
- Hudson River Museum: Hudson Riverama Flash Presentation
- Board of Cooperative Educational Services: The Hudson River and Kaptain Kidd
Hudson River Travel
- GORP: Hudson River Valley, New York
- Atlantic Kayak Tours: Hudson River Valley Kayak Map
- Lonely Planet Search: Hudson River
- Frommer's: Hudson River Valley: Introduction
Hudson River Transportation
- Virtual Tourist: New York State Transportation Tips
- PlanNYC: Hudson River Commuter Train Tunnel
Hudson River Activities
- Hudson River Rafting: Adirondack Mountains of New York
- Hudson River Lights: Hudson River Valley Lighthouses
- Hudson River Cruises: Cruise on the Rip Van Winkle
- TripAdvisor: Hudson River Valley Historical Sites
- Wikipedia: Hudson River Waterfront Walkway
Hudson River Photos and Videos
- Live Search Images: Hudson River
- Google Image Search: Hudson River
- Yahoo! Image Search: Hudson River
- Tube & Google Video Search: Hudson River
- Yahoo! Video Search: Hudson River
Hudson River Blogs and Forums
- Google Blog Search: Hudson River
- Going Coastal: An Island in the Hudson, Plundered in Search for Indian Artifacts
- TrekEarth: Big Bend in the Hudson River
- TravelPod: ailing Down the Hudson River to West Point
Hudson River Organizations and Societies
- Hudson River Foundation
- Hudson River Fisherman's Association
- The Hudson River Watertrail
- Friends of Hudson River Park
- Riverkeeper
Hudson River Fun Stuff
- Hudson River Maritime Museum
- Hudson River Recreation: Kayaking on the Hudson River
- Bardavon: Hudson River Arts Festival
Hudson River Books and Merchandise
- Amazon.com: Hudson River Books & Merchandise
- eBay: Hudson River Merchandise
- Barnes & Noble.com: Hudson River
- Google Product Search: Hudson River