• AGORA :: Access to Global Online Research in Agriculture
• Use of Permaculture Under Salinity and Drought Conditions (Jordan)
• Brick and Tile Permaculture
• Sketchup Plants, Trees, and Shrubs Archive
• 3rd World online library
• Harvesting Water
• Pip Magazine
• Permaculture UK
• Permaculture Global
• Perma Blitz
• Seed Savers
• Permaculture Day
• Masanobu Fukuoka and The One-Straw Revolution
• Permaculture Plants
• Plants for a Future
• Herbs are special
• The Mulch Pit
• Enllaç extern de recursos gratuïts (anglès)
• Ezine (anglès)

Free textbook and course materials

• "Intro to Permaculture" textbook by Andrew Millison
• Permaculture Water Design: Drought Proofing Farms
• Permaculture podcast