Zoomerang  is a very easy-to-use on-line survey tool that allows you to create, distribute, store, and export surveys of your own making. It provides templates and ways of engaging materials that also help if you've never tackled a poll of any size before. It's best features do cost money, but it can be accessed for free for a survey of up to 30 questions with 100 respondents and it also offers educational discounts.