Entrepreneurship is one of the resources economists categorize as integral to production, the other three being land/natural resources, labor and capital. An entrepreneur combines the first three of these to manufacture goods or provide services. They typically create a business plan, hire labor, acquire resources and financing, and provide leadership and management for the business.
One of the most important internet marketing strategies is to develop every customer's lifetime value. At least 36 percent of people who have purchased from you once will buy from you again if you follow up with them. Closing that first sale is by far the most difficult part -- not to mention the most expensive. So use back-end selling and upselling to get them to buy again: