See a need, fill a need.
Yes, it started out just that way. While working with our clients, we noticed a great marketing strategy was missing from the on-line purchasing equation. Providing clients an easy way to share free items with their customers.
Maybe it's a free song. Maybe it's a free chapter of a book, so that the customer could sample the book before they purchase it. Or, maybe it's a receipt that goes along with the grass fed steak they are purchasing.