Peterborough County Stewardship Council
- Mandate to develop programs for private land use that maintain and preserve rural areas and resources.
- http://www.ontariostewardship.org/ontarioStewardship/home/osPCSCIndex.asp

Peterborough District Construction Exchange
- A non-profit organization established in 1960 to serve and advance the interests of the construction industry in the Peterborough area. Features news and membership information.
- http://www.pdce.ca/

Thirteen Moons Retreat
- Retreat for women providing vegetarian meals and wellness programs. Provides pictures and information about lodging and facilities.
- http://www.thirteenmoons.ca/

Kawartha Manufacturers Association
- Trade association representing industries and business from Kawartha and Peterborough regions.
- http://www.thekma.com/

Otonabee Township Genealogy
- Early settlers of Peterborough county and their descendants. Features cemetery transcripts, the Esson family tree, articles on Red Fife wheat and the Lang Century village museum.
- http://www.nexicom.net/~resson/

Holiday Pines Park
- A community on Rice Lake for owners of parkmodels and trailers for summer, weekend and vacation retreats or for full-time seasonal living. Lists features, organized activities and units for sale.
- http://www.holidaypinespark.com/

Millbrook and Cavan Historical Society
- Studies all phases of the history, life, and customs of the early period of Millbrook, Cavan Township and surrounding area. Includes information about the society, meeting times and location, resources and links to related societies.
- http://www.kawartha.net/~mchs/mchs.htm

Supporters of Kawartha Highlands Provincial Park
- A proposed provincial park covering over 35,000 hectares in the northern section of the county. Includes a summary of issues, FAQ and maps.
- http://kawarthahighlandspark.ca/

SoundSmith Studio
- A music CD recording studio. Equipment details, prices and contact information.
- http://internettrash.com/users/soundsmith

Peterborough Waste Reduction Guide
- Information about a joint project organized by Peterborough Green-Up and supported financially by the City of Peterborough and The County of Peterborough.
- http://www.peterboroughreuses.com

The Official County of Peterborough Website
- Government departments, services, and facilities with links to townships, communities, business, lodging, sights and attractions in the County of Peterborough.
- http://www.county.peterborough.on.ca