Communication is essential if you want to begin and maintain relationships. Because of this, the World Wide Web has become the ultimate medium between person to person, network to network, established all over the world. Those who want to build a large network in a forum or online business can do so through email listings and joining social networking sites. A person who wants to locate his or her long lost friends back in high school can finally make the first move to reconnecting with them by emailing them. But because of the many years of not communicating and lack of organizational skills, there have been cases where a person forgot the email address or a company cannot communicate with the members of its workforce because the information given have changed or have been cancelled by the owner. But there is a solution to this problem and it’s known as the email address look up service.