Binary means two, and so all you need to do is to introduce the products to two people and you are in MLM Business. It is very much like a human cell dividing into 2 and then 4 and then 8 and so on. In matter of months or a few years the MLM Organisation of distributors and customers can far exceed many thousands.
Binary pay plans are one of many compensation plans in the Multilevel Marketing Business that helps to pass on some of the revenue collected through the sale of products caused by the actions of the distributor network or sponsored network in the market place.
Many binary's have systems in place that may allow you to earn Commissions at a later (via a Carryforward) on your Strongest leg.