How can I get people to take my survey about online t-shirt design communities?

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Question by jzav01: How can I get people to take my survey about online t-shirt design communities?
My friend is thinking about making an online design community kind of like threadless, but with extra copyright protection and royalties and stuff.
A research team at BYU made a survey for designers (and design appreciators) to take so he can figure out if it'll work.
He's giving away an Ipod to a lucky survey-taker, so there's a little more incentive for it.

The problem is that we are having

Online Survey Tools...