The reason why someone would be interested in doing online identity management is closely related to the increasing number of constituencies that use the internet as a tool to find information about people. A survey by CareerBuilder.com found that one in four hiring managers used search engines to screen candidates. One in 10 also checked candidates' profiles on social networking sites such as Facebook, Instagram, Twitter, Youtube and other communicative networks.[10] According to a December 2007 survey by the Ponemon Institute, a privacy research organization, roughly half of U.S. hiring officials use the Internet in vetting job applications.[11] Online identity management may also be used to increase an individual's professional online presence.