Beware of the survey located at:

http://www.e-rewards.com/pro.do?FT=DPK7JT4VNJC4

According to the progress bar at the top of the survey, I completed more than 55% of the survey, and then received the screen message:

"Thank you for your interest in this study. Unfortunately, your responses do not meet the criteria required to fully qualify and complete this study. Your e-Rewards account has been credited the partial credit amount."

I submitted a complaint and request for full compensation, and also called their attention to the 100+ page discussion thread on this website regarding these deceptive practices dating back to 2004.