Fusion Cash has been having surveys from researchers at academic facilities such as universities. Usually they are not too long, very interesting, relevant and fun. I really enjoy them. They usually do not pay very much. like 10 or 15 cents. Half of the time, when I submit the completed survey, I get an over quota or or not qualified message. That is what happened to me today. However, the survey only paid 10 cents and I did get my penny ... This same problem has been happening on other sites also.
I still like these academic research surveys and I will continue to attempt them hoping that I will also get my full credit.