Emarketing, digital marketing, and internet marketing all share some overlap, but each also use slightly different approaches. Emarketing is much more relationship-oriented than internet marketing, which focuses exclusively on directing site traffic for maximum potential profit. Meanwhile, digital marketing has the widest scope with a lot of tactics, platforms and mediums falling under its large umbrella.
Among the best commercial sources of information are research and trade associations. Information gathered by trade associations is usually limited to that particular industry and available only to association members, who have typically paid a membership fee. However, the research gathered by the larger associations is usually thorough, accurate, and worth the cost of membership. Two excellent resources to help you locate a trade association that reports on the business you are researching include the Encyclopedia of Associations (Gale Research), and the Encyclopedia of Business Information Sources (Gale Group).
In corporate law and taxes, an affiliate is a company that is related to another company, usually by being in the position of a member or a subordinate role, a subsidiary. According to Investopedia, a subsidiary is a company "whose parent is a majority shareholder." (That means the parent owns 51 percent or more of the other company's shares of stock.