If you need to poll a big group of people, Typeform offers an intuitive interface and a lot of options, all for free.
The de facto free choice for creating web forms and surveys is often Google Docs or SurveyMonkey, but Typeform has a much nicer interface, and a few more options. The survey creator lets you drag and drop 20 different question types. Once you're done, just share the link to your survey, and watch the results roll in on an easy-to-read analysis page.
Typeform is in open beta, and only lets you create three forms with 20 questions and 5000 responses at first. Sharing a few words about it on a social network will remove the restrictions.