Links

Explore this directory of cannabis and hemp resources: news, education, communities, research, genetics, policy, and industry organizations. We aim to make it broad and useful; inclusion is not an endorsement, and laws vary by location.

Cannabis culture

Start here for familiar publications, strain discovery, and places to browse legal-market services.

• High Times — A long-running cannabis publication with a mix of culture, news, interviews, and features.
• Leafly — Leafly combines a large strain library with explainers and tools for browsing licensed retailers where available.
• Weedmaps — A directory for exploring cannabis retailers, menus, and services in markets where sales are legal.
• Cannabis Culture — Independent coverage of cannabis politics, culture, activism, and growing.

Advocacy

These groups work on policy from different angles: legislation, public education, student organizing, and voter participation.

• NORML — NORML tracks cannabis laws and campaigns for reform, with state-by-state resources for U.S. readers.
• Marijuana Policy Project — The Marijuana Policy Project follows legalization efforts and organizes policy campaigns across the United States.
• Drug Policy Alliance — Drug Policy Alliance looks beyond cannabis alone, connecting reform work with public health and harm reduction.
• Students for Sensible Drug Policy — Students for Sensible Drug Policy brings students and young adults into drug policy advocacy and education.
• Drug Policy Reform Network — A resource for drug policy reform and harm reduction; check its current projects and scope directly.
• Cannabis Voter Project — The Cannabis Voter Project offers election information and ways to engage with cannabis policy.

News & industry

From Capitol Hill to cultivation businesses, these outlets follow the stories shaping cannabis markets and culture.

• Marijuana Moment — For policy watchers, Marijuana Moment follows legislation, agency actions, and the politics around cannabis.
• Cannabis Industry Journal — Cannabis Industry Journal publishes operational and technical coverage for businesses across the sector.
• MJBizDaily — MJBizDaily focuses on market developments, company news, finance, and regulation in the cannabis trade.
• Cannabis Business Times — Cultivation is a strong thread here, alongside business reporting and practical coverage for licensed operators.
• Ganjapreneur — Ganjapreneur pairs cannabis business reporting with interviews, policy updates, and founder stories.
• Leafly News — Leafly’s newsroom covers the changing retail landscape as well as cannabis culture and policy.
• Marijuana Venture — A trade publication centered on the people, markets, and business decisions shaping legal cannabis.
• Cannabis Now — Features, opinion, and lifestyle stories sit alongside Cannabis Now’s coverage of the wider industry.

Health & research

A mix of patient advocacy, scientific organizations, public-health agencies, and searchable research records. Medical information here is for general education, not individual care.

• International Alliance for Cannabinoid Medicines — The IACM brings together cannabinoid medicine research, scientific meetings, and updates for the medical community.
• Americans for Safe Access — Americans for Safe Access centers patient access, advocacy, and practical information about medical cannabis policy.
• Project CBD — Project CBD focuses on cannabidiol, with articles that connect emerging research to public discussion.
• National Academies cannabis review — A National Academies evidence review examining what research does—and does not—show about cannabis and cannabinoids.
• Leafly Health — A consumer-oriented collection of health reporting and explainers from Leafly.
• CDC Cannabis and Public Health — The CDC’s public health hub links to information on cannabis, health effects, data, and prevention.
• National Institute on Drug Abuse — NIDA summarizes federal research on cannabis, including health effects and ongoing study priorities.
• ClinicalTrials.gov — Search registered studies that mention cannabis; a listing alone does not mean a treatment is proven or recommended.
• WHO ICTRP — WHO’s portal searches trial records supplied by registries around the world.
• International Cannabinoid Research Society — A professional society where researchers share work on plant cannabinoids, endocannabinoids, and related science.

Growing resources

Books, tutorials, and specialist guides offer different ways into the craft. Always follow the rules where you live.

• Grow Weed Easy — An illustrated, step-by-step guide library with a particularly approachable path for first-time growers.
• I Love Growing Marijuana — Browse strain information, cultivation tutorials, and troubleshooting articles aimed at home growers.
• Coco For Cannabis — A specialist resource for coco coir, with detailed tutorials and experiments focused on that growing medium.
• Zamnesia — Zamnesia pairs a headshop and seed catalog with a broad editorial library on cannabis and cultivation.
• Growbarato — A Spanish grow-shop destination with product listings and cultivation content in Spanish.
• The Cannabis Grower’s Handbook — Ed Rosenthal’s handbook is a book-length reference, from planning a grow space through harvest and curing.
• Mold Resistant Strains — A focused directory discussing varieties selected and marketed for mold resistance.
• Hemp Diseases and Pests — This digitized reference covers hemp diseases, pests, and biological control methods; availability may vary.

Forums & grower communities

The conversation happens in forums, journals, and social communities. Members share experience, not professional or legal advice.

• GrowDiaries — GrowDiaries makes cultivation visible through grow logs, photo updates, strain notes, and reader discussion.
• International Cannagraphic Magazine Forums — ICMag’s extensive forums span grow journals, cultivation methods, genetics, regional communities, and cannabis history.
• Rollitup — Rollitup is a busy forum with grow journals, strain discussions, and troubleshooting threads from its members.
• Grasscity Forum — Grasscity’s forum brings together cultivation talk, equipment discussions, journals, and general cannabis culture.
• Reddit: r/microgrowery — A large Reddit community for home-growing questions, garden updates, and shared experience.
• Reddit: r/cannabisbreeding — A niche community devoted to breeding projects, genetics, and the work behind new crosses.
• Growers Network — Growers Network connects cultivation professionals and publishes resources for commercial growing operations.
• Autoflower Network — A forum and journal community built around autoflower varieties and their cultivation.

Seed banks

From legacy breeders to multi-brand shops, these sellers differ in their histories, genetics, and the way they present their catalogs. Their own terms and shipping policies apply; inclusion is not an endorsement.

• Seedsman — A broad retailer marketplace: Seedsman brings together its own selections and genetics from many outside breeders.
• ILGM — ILGM pairs its seed shop with grow guides, strain explainers, and a customer-facing grow community.
• Seed Supreme — Seed Supreme is a multi-brand storefront, useful for comparing breeders and varieties in one place.
• Homegrown Cannabis Co. — Alongside seeds, Homegrown Cannabis Co. publishes beginner guides and longer-form growing instruction.
• i49 — i49 offers a wide online selection across familiar strain names and seed types.
• Organic Catalog Cannabis Seeds — The Organic Catalog highlights seed lines organically bred and grown.
• Barney’s Farm — Barney’s Farm is an Amsterdam-based breeder with a catalog of established names and newer releases.
• Sensi Seeds — Founded in 1985, Sensi Seeds is known for preserving classic genetics; its site also carries a substantial cannabis education blog.
• Dutch Passion — Established in Amsterdam in 1987, Dutch Passion is associated with early feminized seeds and a continuing focus on autoflower breeding.
• Stellar Seeds — Stellar Seeds presents a U.S.-based catalog with genetics from multiple breeders.
• Blimburn Seeds — Blimburn’s large catalog groups its own selections alongside partner genetics and bulk options.
• Premium Cultivars — Premium Cultivars focuses its shop on feminized and autoflower seeds, including some less common strain names.
• Exotic Seed — A European breeder catalog centered on feminized and autoflower lines.
• Serious Seeds — Serious Seeds keeps a compact breeder catalog, including long-established varieties such as AK-47.
• Green House Seeds — Green House Seeds publishes breeder notes and strain details alongside its seed catalog.
• Fast Buds — Fast Buds specializes in autoflower genetics and organizes much of its catalog around that format.
• Mr. Nice — Mr. Nice combines its seed catalog with breeder history and background on its genetics.
• USC Seed Banks project — A University of Southern California digital project documenting seed banks and their histories.

Strain references

Names and family trees are often reported differently from one source to another; these databases help you compare the record and follow its references.

• SeedFinder — SeedFinder is a cross-reference for strains, breeders, and seed sellers, useful when tracing names across catalogs.
• CannaLib — CannaLib presents strain and family-tree records with citations attached to its entries.
• Origenetica — Origenetica is building a documentary archive around breeder histories and cannabis lineage.
• Leafly strain library — Leafly’s strain pages collect names, reported lineages, and reader-facing descriptions in one searchable library.

Laws & import rules

Import and cannabis laws vary sharply by jurisdiction and change over time. Start with official authorities, and confirm the current rules before ordering.

• European Union Drugs Agency — EUDA’s FAQ compares European approaches and links into official country-level information.
• UK Home Office cannabis factsheet — The UK Home Office explains licensing and controlled-drug rules for cannabis and cannabinoids.
• USDA APHIS — USDA APHIS explains how plant health rules can apply to seeds purchased online and brought into the U.S.
• Canadian Food Inspection Agency — Canada’s inspection agency provides seed import and plant health requirements for buyers and businesses.
• Health Canada — Health Canada’s import/export guidance is for licensed cannabis producers, not a consumer seed-import guide.
• Cannabis Freedom Index — An independent country-by-country policy tracker with linked sources; use it to orient your research, then verify current law with authorities.

Hemp & agriculture

Hemp production sits at the intersection of agriculture and regulation. These university and government resources focus on crop research and licensed production.

• USDA Hemp Program — USDA AMS outlines the licensing routes and program contacts for U.S. hemp producers.
• USDA National Institute of Food and Agriculture — NIFA collects research and funding information related to industrial hemp in U.S. agriculture.
• Hemp Production Information Center — University extension specialists share production research and field guidance for hemp growers.
• European Commission: Hemp — The European Commission explains EU hemp production rules, including the use of certified varieties.
• USDA Agricultural Research Service — USDA researchers introduce hemp’s agricultural uses and work to conserve its genetic resources.

Testing & standards

For growers, regulators, and laboratories, these organizations work on shared methods for measuring quality and safety.

• NIST Cannabis Laboratory Quality Assurance — NIST develops measurement tools and reference materials to help cannabis labs compare results reliably.
• ASTM Committee D37 — ASTM’s D37 committee develops voluntary cannabis and hemp standards, including methods for testing and cultivation.
• ASTM Cannabis & Hemp — ASTM gathers its cannabis standards, industry training, and certification programs in one place.

Industry groups & events

Trade groups represent particular parts of the business; event and media links offer a way to follow the sector beyond daily headlines.

• National Cannabis Industry Association — NCIA represents U.S. cannabis businesses in policy discussions and provides member education and advocacy.
• International Federation of Cannabis and Hemp Associations — IFCHA links national associations to coordinate cannabis and hemp industry issues internationally.
• European Cannabis Association — A trade group focused on Europe’s medical cannabis industry, regulatory coordination, and professional network.
• European Industrial Hemp Association — EIHA represents the European industrial hemp sector and tracks policy affecting hemp businesses.
• Cannabis Trades Association — The Cannabis Trades Association connects businesses across hemp, CBD, and medicinal cannabis.
• MJBizCon — MJBizCon’s Las Vegas expo and conference serves businesses across cultivation, manufacturing, and retail.
• Business of Cannabis — Business of Cannabis reports on Europe’s evolving markets and hosts industry events.

History & media

Museums and storytellers preserve a long, complicated relationship between cannabis, people, and place.

• The Cannabis Museum — A museum and living archive collecting objects, documents, and oral histories tied to cannabis and hemp.
• World of Cannabis Museum — Amsterdam’s World of Cannabis Museum explores the plant’s history through exhibits and public programming.
• Cannthropology — Cannthropology uses collection objects and guest conversations to tell stories from cannabis history.
• Great Moments in Weed History — David Bienenstock’s podcast revisits people, events, and turning points in cannabis history.
• Mr. Grow It — Mr. Grow It mixes beginner-friendly how-to articles with Garden Talk interviews and grow-light tests.

Jobs

These sites range from cannabis-only job boards to general professional networks with industry-specific searches.

• 420 Jobs Board — A job board focused specifically on cannabis businesses and related roles.
• Ms. Mary Staffing — Ms. Mary Staffing recruits for employers across cannabis cultivation, retail, and operations.
• Indeed — A broad job-search site filtered to cannabis-related openings; listings vary by location.
• LinkedIn Cannabis Jobs — LinkedIn gathers cannabis-industry openings alongside company profiles and professional networking.
• Careers in Cannabis — A sector-specific careers site where candidates can browse employers as well as open roles.
• The Cannabis Jobs Board — A dedicated board for job seekers and employers in the cannabis sector.