MDXResearch.com is pretty good especially if you are living in the states. They have great survey opportunities and a lot of guidance and recommendations in their newsletter. I have made hundreds of dollars already and am so glad that I found MDX Research.
-- Dan Stephenson
5 / 5 stars
I am a newcomer to paid survey sites and had no clue how or where to begin. MDXResearch.com has a wonderful 10 step self-help guide that took me through the process one step at a time. If I had not come to Profitable Paid Surveys I would probably still be stumbling through the survey taking experience. I highly recommend them to anyone who is considering paid surveys!