He became a multi-level marketing and infomercial salesman.

The diamond safari went bust, as did Robertson's ventures in vitamin sales and multi-level marketing.

Affiliate marketing is often confused with either network marketing or multi-level marketing.

Near the end of his life, Rubin was heavily involved in multi-level marketing of health foods and nutritional supplements.

Weil and Bowden also criticized the product for being sold through multi-level marketing.

The company's service plans are sold through multi-level marketing.

Nu Skin Enterprises' business model combines direct selling with multi-level marketing.

Some sources classify multi-level marketing as a form of direct selling rather than being direct selling.

In 1945, he invented the multi-level marketing, door-to-door, selling system to distribute his vitamins.

This is done by recruiting new members in a business practice similar to multi-level marketing.