Gallup Poll: Great reputation as a nonpartisan poll/survey examiner for news "based on US and world polls, daily tracking and public opinion research." Use the resources pull down, and go to topics A-Z, or just enter your basic terms in the search box.
Pew Institute: A nonpartisan site that uses polls/surveys to examine current issues and trends affecting America and the world. Use the search box to look for a specific item, or the topic index (tab at the top) or search by general overview. Scroll down in each issue, as there are several survey questions shown for each.