Now you can make your own cool-looking web-based surveys for free.
However, if you want more than 100 participants or 30 questions you'll have to go to the paid version, which is $599/year. (Non-profit/educational version is $350.) Also for the free version the results for a survey expire after 10 days.
To check out an example, take this survey I created: Wunderfool Reading Survey.