An e-commerce business model  is a strategic plan outlining and defining how an individual or company  will conduct electronic trade or Internet commerce (e-commerce). The  model provides an organized and structured guide to ensure the business  makes a profit, generating enough revenue to be self-sustaining.  Generally, the e-commerce business plan  covers how to decrease operating costs and increase profits, as well as  clearly define the roles of each person involved in the business.  Specific details of each e-commerce business structure is dependent upon  the type of business covered by the plan.
Also referred to as an  Internet business model, the e-commerce business model typically  modifies a business plan that is already successful in  "brick-and-mortar" businesses and adapts it to suit the specific  business category. The model takes into consideration the 
differences of  conducting business online, as compared to face-to-face, addressing  both the risks and the rewards. Several categories have proven to be  successful as e-commerce businesses. These include selling Internet  advertising; selling various types of products and specialized services;  information industries that provide knowledge and expertise in many  topics; electronic publishing; and Internet-based careers, previously  unknown before the advancement of technology and Internet accessibility.The best e-commerce business model typically includes a specific  e-commerce business structure or Internet business design customized for  the particular type of business. A popular business magazine has  described three primary types of Internet business plans.  Each of these e-commerce business models has its own set of  responsibilities or obligations, along with related operational costs  and potential profit margins.
    Each common e-commerce business model described includes product sales, service sales, and information delivery. An entrepreneur  may even combine two or more of these models, depending on the nature  of his or her e-commerce business. Each setup features variations within  the respective e-commerce business model.
  For instance, someone who engages in product sales through e-commerce  may choose to sell through an online storefront, mall, or auction site.  Similarly, an entrepreneur offering various types of services may do so  through online storefronts or malls. The third most common type of  e-commerce business is information delivery. In this technological age,  providing information on matters of interest is quicker and more  convenient than ever before, either through online publications or portal  sites offering numerous topics. These e-commerce endeavors may be  extensions of existing brick-and-mortar businesses, or stand alone.
  Regardless of the e-commerce type or structure, any entrepreneur or  businessperson who has a thorough e-commerce business model in place is  more likely to succeed than one who does not. An old adage says, "Those  who fail to plan, plan to fail." This bit of wisdom emphasizes the  importance of a strategic e-commerce business model that concisely  addresses the needs of a specific business enterprise.