Reputation is a social construct based on the opinion other people hold about a person or thing. Before the internet was developed, consumers wanting to learn about a company had fewer options. They had access to resources such as the Yellow Pages, but mostly relied on word-of-mouth. A company's reputation depended on personal experience. A company while it grew and expanded was subject to the market's perception of the brand. Public relations were developed to manage the image and manage the reputation of a company or individual. The concept was initially created to broaden public relations outside of media relations. Academic studies have identified it as a driving force behind Fortune 500 corporate public relations since the beginning of the 21st century.