Post Your Survey Announcement To One And All

Send out the email to everyone in your niche subscriber list or, if you don't have one of those, visit forums and, after getting to know others visiting (don't just post and go) eventually, leave your message about the survey.

You can use Google Adwords to drive people to your survey but I prefer the low cost, no cost route.

Leave your survey up for as long as you can, at least 30 days after your postings and emails have been sent out ... keep posting and sending them out each day.