Delaware River at Riegelsville - Hydrograph of the Delaware River at Riegelsville, PA
Catskill Mountainkeeper - A member based advocacy organization dedicated to preserving and protecting the long term health of the six counties of the Catskill Region.
Delaware Riverkeeper Network - Established in 1988 upon the appointment of the Delaware Riverkeeper, the Delaware Riverkeeper Network (DRN) is a nonprofit 501(c)(3) membership organization. DRN's professional staff and volunteers work throughout the entire Delaware River Watershed including portions of Pennsylvania, New Jersey, Delaware and New York.
Damascus Citizens For Sustainability - a grassroots nonprofit, 501(c)(3), organization dedicated to protecting the Upper Delaware River Basin and beyond from the ravages of deep-shale gas extraction and the threat posed by the natural gas industry.
Delaware River at Phillipsburg - USGS Real-Time Water Data for the Delaware River at Route 22 in Phillipsburg, NJ
Pennsylvania River Info - USGS Real-Time Water Data for Pennsylvania River Basins
Animated Knots by Grog - Animated instructions on tying different types of knots
Home Science: Backyard Conservation - Lots of information and links regarding Conservation and what you can do at home to help