"Population Index, published between 1937 and 1999, was the primary reference tool to the world's population literature. It presented an annotated bibliography of recently published books, journal articles, working papers, and other materials on population topics. This website provides a searchable and browsable database containing 46,035 abstracts of demographic literature published in Population Index in the period 1986-2000."
Provides access to full datasets required to conduct bivariate and multivariate analyses on archived surveys. Roper Center also includes iPOLL, a comprehensive database of 500,000 questions and answers asked in the US since 1935.