Midwest Direct Marketing Association was founded in 1960 and grew from a small group of direct marketing professionals to a trade association with more than 600 members. Direct Marketing as an industry has expanded to include professionals from all disciplines of the business world. MDMA offers opportunities to keep up with new activities, ideas, trends and techniques. Midwest Direct Marketing Association encourages high ethical standards within the industry. MDMA meetings provide excellent networking and educational opportunities.MDMA advances it's mission through a combination of the following networking programs, membership services and resources.

Erowid is an online library containing tens of thousands of pages of information about psychoactive drugs, plants, and chemicals, including entheogens, psychedelics, stimulants, depressants and pharmaceuticals. Includes traditional, spiritual, and responsible use, chemistry, effects, experiences, images, research, legislation, media coverage, bibliographies and a whole lot more.

Lifelong Ecstasy? Beyond MDMA. Mental Health in the Third Millennium; drugs and medications