Permies.com
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Large online forum founded by Paul Wheaton for permaculture, homesteading and organic growing, with active threads on composting, soil building, hugelkultur and worm bins. Useful for troubleshooting specific problems with experienced practitioners; advice quality varies by poster.
More resources on Composting & Gardening
rodaleinstitute.org
Rodale Institute is a nonprofit research and education organization advancing organic farming and regenerative agriculture. The site provides research results, soil-health guides, practical farming resources, and information on programs, events, and trainings for farmers, gardeners, and advocates.
EPA Composting at Home
The US Environmental Protection Agency's short guide to home composting: which materials to add and avoid, balancing browns, greens and water, and setting up backyard or indoor bins, so a beginner can start a working compost pile.
The Complete Compost Gardening Guide
Practical handbook on composting directly in the garden rather than in a separate pile. It explains in-place techniques such as banner batches, grow heaps and comforter compost, and shows how to use them for vegetables, ornamentals and small gardens to build soil.
garden.org
Garden.org is a comprehensive gardening hub featuring an extensive plant database, how-to guides on growing and composting, and community forums with user-submitted photos.
epicgardening.com
Epic Gardening is a practical, beginner-friendly gardening resource offering step-by-step guides, tutorials, and videos on growing vegetables, herbs, and edible plants, with topics spanning soil, water, pests, container gardening, and hydroponics.
almanac.com
Almanac.com (The Old Farmer’s Almanac online) is a gardening-focused resource offering practical how-to articles, planting calendars, and seasonal tips for growing vegetables, flowers, and herbs. It also covers soil and compost advice, pest control, and weather forecasts to help plan and care for your garden.