11.   Representatives receive a portion of the bills generated by those they have signed up, in an arrangement often called multilevel marketing.

12.   The company sells products through multilevel marketing, where individuals buy the products from the company and then sell them.

13.   The entire world of multilevel marketing must be approached with care.

14.   The maker of an herbal concoction called Juice Plus sold by multilevel marketing once employed O.J. Simpson to testify that it cured his arthritis.

15.   The same technique, which is known as network or multilevel marketing, is used by Amway to peddle soap and by Mary Kay to push cosmetics.

16.   The technique is known as multilevel marketing, and it is practiced in various forms by companies such as Herbalife International Inc., Amway Corp. and Mary Kay Corp.