Evergreen Islands
- Non-profit organization designed to protect the ecosystem of the saltwater islands of Skagit county. Includes a history of the organization, current issues, and an introduction to the board.
- http://www.evergreenislands.org/

Skagit Land Trust
- Information to help landowners preserve wildlife habitat, wetlands, agricultural and forest lands, scenic open space and shorelines throughout the county's mainland and islands.
- http://www.skagitlandtrust.org/

Skagit River History
- The history of the Skagit River and government activities in flood management by Larry Kunzler.
- http://www.skagitriverhistory.com/

Skagit Conservation District
- Native plant sale, educational programs, stream team, staff, and articles.
- http://www.skagitcd.org/

Skagit Audubon Society
- Chapter events, birding locations, sightings, and bird checklist.
- http://www.fidalgo.net/~audubon/