River Colne Project
- Working to improve the river environment in the Colne valley between Milnsbridge and Marsden. Information and news about projects, events, publications and funding.
- http://www.rivercolneproject.org.uk/

The Colne Valley Society
- Formed in 1972 to stimulate interest in the Colne Valley (Golcar, Linthwaite, Marsden, Milnsbridge and Slaithwaite), protect its natural beauties and preserve its heritage. Information about membership, meetings, publications, photo galleries, and local
- http://www.colne-valley.clara.net/