The North Maine Woods
- Organization of business and private land owners who own land in the great northern woods. Provides information about access, camping, fees, links, resources, and history of the area.
- http://www.northmainewoods.org/

Maine's Outdoor Sporting Guide
- Lots of links to activities, businesses, guides and information related to enjoying Maine's outdoor recreational opportunities.
- http://maineoutdoors.com/

Libby Hill Forest Trails
- Five miles of skiing, hiking, and walking recreational trails located in Gray.  Features trail maps, volunteer opportunities, event list, and links to other trail systems in southern Maine. 
- http://www.libbyhill.org/