Canna.org
Includes a discussion forum, information request form, ask-the-expert section, and research archives including sections on growing, medical marijuana, and politics.
Cannabinoid.com
Marijuana growing message boards offering a variety of topics.
CannabuzZ
News, forum, image galleries, media capabilities, downloads and IRC chat.
DevilsHarvest.com
Growing marijuana and cannabis cultivation advice. Free pictures, photos, videos, articles, tips, and links to seed banks. Growing hydroponics, aeroponics and cloning information.
Erowid Cannabis Vault: Cultivation
Large collection of guides, list of seed vendors, tips and so forth.
Green Man's Seedbank Update
Seedbank ratings, plans for a home built ozone generator, growing advice, and a list of strains.
Grow Kind
Pictures and growing information featuring user submitted photo galleries, forum/FAQ, marijuana legalization, cooking, links, and books.
Growinfo.com
Forums, FAQ's, articles and growing guides about the cultivation of marijuana indoors and outdoors.
Growing Marijuana
Contains growing marijuana guides, marijuana seeds and legal highs reviews.
Hemp Cultivation
Deals with marijuana and cannabis cultivation, not industrial hemp. Open forum for grow advice, chatroom and news.
Home Grown Hydroponics
Hydroponics basics, how to germinate and seed, plans for making a root chamber, indoor lighting, growing in limited space, and other indoor growing tips and articles.
Hydroponics Marijuana Gardening
Nutrient disorders in hydroponic growing process information. Hydroponic kits and systems, nutrients for hydroponic gardening.
Klozit King's Growpages
A guide for growing cannabis in confined places. Good resource for the novice grower.
Marijuana Cultivation
Site where beginners can learn how to cultivate their own marijuana with less than 50 dollars.
Marijuana Madness
Includes message forum, articles, films, animations, and photo gallery.
Marijuana Optics
An elaboration on the phytochemical process that makes THC. Introduces marijuana parthenocarpy and electrostatic separation of the resin spheres from the plant material to the literature.
Marijuana Party
Simple growing marijuana guide. Also contains marijuana alternatives, seeds, dictionary and marijuana quotes
Outdoor Marijuana Growing Guide
Outdoor growing marijuana guide and legal highs links.
Point Blunt
Includes tips on growing, and other information.
Seedless Marijuana: The Hoax
Scheme of weaken the potency of marijuna with the help of decoys spreading misinformation about cultivation, flowering, THC, and even the botany of marijuana.
Skinup
Growing guide featuring seed germination, soil and hydroponics, harvesting, and drying.
Sunny's
Provides seed bank ratings with links and information about cultivation and culture.
The Growers Buying Guide
Forums for discussing indoor and outdoor marijuana growing.
Uncle Iaza's Guide To Marijuana
A step-by-step beginner's guide to growing, preparing, storing and using cannabis.
Weed Farmer
Forums about cannabis culture. Daily postings showing the growth of marijuans plants, from seed to harvest.