A list of companion planting charts and guides from various permaculture and gardening websites.
If You Guild It, They Will Come: How to Grow a Permaculture Food Forest
Introduction to permaculture guilds and companion planting. Suggests combinations for berries, apples, kale, figs, peaches, rosemary, and echinacea.
Top 12 Online Permaculture Design Courses
A list and description of the top online permaculture courses which focus on food forestry and sustainable living.