Roper iPoll - This link opens in a new window
The Roper Center collects public opinion data on a wide range of topics, e.g., immigration, leisure and recreation, race, religion, work and labor, poverty, elections and many more. Currently it offers nearly 700,000 questions and answers from US national adult sample polls, and the archive holds over 23,000 US and international datasets. Data can be downloaded or analyzed using their online tool RoperExplorer.