Rope:
- Rope Care: Ends, Cleaning and Coiling – Animated Knots by Grogg
- Two Knotty Boys Instructional Videos – Two Knotty Boys
- Ropetopia: Basic tutorials - WykD_Dave
- NawaPedia: Online encyclopedia of Japanese bondage
- Google body: Anatomy tool much like Google earth
- MonkeyFetish: Rope bondage tutorials
