Research Databases: D

Directory information for 11 million U.S. businesses and 120 million U.S. households. Search for businesses by SIC code, sales volume number of employees and more. Search for residence directory information by name, location or phone number.

DPLA connects people to the riches held within America’s libraries, archives, museums, and other cultural heritage institutions. All of the materials found through DPLA—photographs, books, maps, news footage, oral histories, personal letters, museum objects, artwork, government documents, and so much more—are free and immediately available in digital format.