win - US-friendly sites:
"Survey Networks takes the end user through a short survey, which when completed, enters them into a drawing for any number of great prizes including cars and $50,000 cash!"
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"Ipsos is a worldwide leading market research company. You may have seen our name through our polling partner, the Associated Press. It is free to join the survey panel and panelists will have a chance to win prizes, like $5,000 cash or a car. Strictly for the US" US residents only..."
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