U.S. Hemp Roundtable:

Mission is to secure the passage of legislation to permanently legalize hemp. Comprised of a coalition of dozens of seed-to-sale hemp companies

CBD Project:

Dedicated to promoting and publicizing research into the medical uses of cannabidiol (CBD) and other components of the cannabis plant. Providing educational services for physicians, patients, industry professionals and the general public.

PubMed:

PubMed comprises more than 28 million citations for biomedical literature from MEDLINE, life science journals and online books.

Endocannabinoid Resource Center