- The Treehouse Guide
- Pictures and description of a vertiginous treehouse project by Patrick Fulton. Building advice, designs, book reviews, and examples of other projects.
- Out 'n About
- Includes instructions, plans and kits for building a treehouse. Offers consulting services, and rentals in southern Oregon.
- Treehouse World of the Minnesota Treesnakes
- Built in a grove of maple trees in Minnesota. Describes how to build a treehouse.