Internet advertising is a relatively new field for many company owners. The lack of knowledge and interest for online marketing will have a negative effect on the growth of a company. Although online marketing is a fast growing phenomenon, advertising agencies can help educate and guide companies in the right direction and grow their business exponentially.

Advertising agencies are experts on online marketing and comprehend the impact that email marketing has on a company. Adverting agencies often use email address lists to market, promote and help their clients. This list consists of numerous advertising agencies in the U.S.