List: Online Survey Companies

From Clinicaltools.com

• Absolutelyfreebies.com
• American Consumer Opinion: Information
• FoodQuiz.com
• Get Paid To Take Surveys: How It Works
• memolink
• spiderMetrix.com
• Surveys4Money
• WebSurveyor

Note that survey promotions may be problematic. For example: "You do not have to participate in a survey to have a chance to win the drawings. Just print your name on a postcard and mail it to..." (http://www.acop.com/English/Information.htm).