How do you know which paid survey companies have had good results for their clients?  You know by checking their refund rates. Low refund rates means that their clients are happy and satisfied. High refund rates indicate bad results for clients and unhappy clients. Look for a refund rate in the 3-5% (ideal) range. Avoid any with over 10% refund rate. (At this writing, 6 out of the top 20 biggest paid survey companies have refund rates over 10%! Bigger is not always better!)

How do you know that it's a strong guarantee?  Strong money-back guarantees are for 60-90 days and are backed up by a bank or financial institution such as PayPal or ClickBank. Weak guarantees lack one or more of these elements.

How much money can I make?  That depends mostly on your diligence in finding and taking surveys and your demographics. Most serious survey participants who take free online paid surveys for money report incomes of $200 - $600 a month. Some report $1,000 or more a month.

Be sure to check out the resources available elsewhere on this site, especially the Paid Survey Info  directory page, the Home Page, the Analysis & Current Recommendations , and the Getting Started pages.