ReferenceUSA, a service of Infogroup, is an Internet-based reference service founded in 1992. The site was designed for use as a reference and research tool for students, job seekers and researchers. ReferenceUSA offers a wide range of database products, available in print, CD-ROM or via the Internet. These products include State Business-to-Business Marketing Directories, The American Big Businesses Directory and CD-ROM, The American Manufacturers Directory and CD-ROM, The American Business Disc, and Powerfinder. ReferenceUSA products are built by librarians for librarians.