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The direct selling model has been around for more than 150 years, and it continues to be an effective model for getting sales and obtaining profit. It is basically the original social networking business, since it is driven by word of mouth marketing, through the relationships and trust that people form with each other.
Though the main tools of the direct selling trade are basically the people themselves, the technology of today has definitely changed the way people form connections with other people. In the past, direct sellers were limited to physical locations. They literally had to go door-to-door, organize a party in their house, or conduct a meeting at a restaurant or local café.

Nowadays, technology has made it possible for direct sellers to conduct their business anywhere. They can now reach hundreds of people with just one click, and they don’t have to be physically next to the other person to interact with him and talk about the benefits of a product they’re selling...

Via Daniel J Smith, Martin Gysler