Traditionally, in American businesses, the same person occupies the role of chairman of the board and chief executive officer, though this is gradually shifting to the European model. In most European, British, and Canadian businesses, the roles are usually split, in an effort to ensure better governance of the company, and in turn bring higher returns to investors.
There are over 200 million people worldwide connected to the Internet, with over 64 million regular users in America. It's no wonder that such a vast audience has made online marketing one of the fastest growing industries in the world. However, half the trick of conducing successful ecommerce is finding a way to get people to your site in the first place-hence online advertising.