It's just a money-making organization who offer you access to home based job opportunities if you join them but the job offers are either old or outright bogus. Lately, they've changed their tactics. As a distributor, you are self-employed and set your own hours. Generally, you purchase a starter kit with order forms, samples and supplies for direct sales to consumers. Popular items sold this way include toys, cosmetics, etc.
Many pyramids disguise and tout themselves as legitimate MLMs.
History shows that most MLM companies never see their third year in business. Contact the Direct Marketing and Multi-Level International Association to see if a company is a member. Check for any complaints with the Better Business Bureau's and attorney general's offices in the state of the company's headquarters. Legitimate network marketing companies usually offer affordable start-up materials. A stable company providing outstanding customer service.