Profile Surveys on the log in page.

They have very efficient reward program, where MarketPoints are awarded for each survey completed and redeemed for cash. The surveys assigned are normally high in MarketPoints, but some may take you up to 30 minutes to complete due to the length of the survey questionnaires. And at time, it can be quite difficult to qualify for a survey because of the high quality standard of the survey questionnaires.

However, you will still be rewarded with 5 MarketPoints even if you are not qualified to complete a survey. From time to time, sweepstakes are also organized for member to earning extra cash of up to USD$500 cash prize with 2 entries given for each survey completed. Unfortunately, sweepstakes are only open to select countries and Singapore is not one of it.

What I Like About It
They have newsletters and a blog, where you can get the latest news and updates about the panel. Updates like a new feature called SurveyShuttle that help you earn more points by invite you to survey that you may not have been invited to take. And the blog do provide tips which can help you to increase your chance to earn more extra cash from taking online surveys. You also can find payment notice made to the members for every month on the blog. GTM has one of the best Affiliate programs I have seen. They pay you a reasonable set fee for each referral that registered through the affiliate link that they provide you. The set fee will depend on several factors, like the contents on your site that you place the link and etc. Their customer service representative will provide you with the necessary resources and tools needed for you to recruit successfully.

Updated Aug 2012
Their blog and newsletter have since taken down after the setup of their facebook page. However, you can still find all the useful information on the facebook page. And as of today, they have paid out a total of $6,569,194 to their members. And other than the affiliate program, there is a new Refer-A-Friend program on the website that makes referring friends easy.


What I Don’t Like About It
It will take 6 to 8 weeks to receive the check from the date of redemption for members outside of U.S. The sweepstakes are not open to all members.

General Details:
Registration: Free
Targeted Region: Singapore & International
Age requirement: At least 18 yrs or must be 14 to 17 yrs and have parental or legal guardian permission to join.
Reward Program: MarketPoint system; accumulate MarketPoints for redemption, 5 - 75 MarketPoints per survey, minimum MarketPoints for redemption is 1000, 1 point is as fixed value of USD$0.05.
Items Redeemable: Check to be send in preferred currency for selected countries only. 4-6 weeks from date of redemption for U.S members, 6-8 weeks for members outside of U.S.
Refer-A-Friend Program: Upon completion of each referral's first survey (excluding Profile Surveys), 20 MarketPoints will be credited to your account.
Affiliate Program: To join as an affiliate click here.

Overview
GTM has proven to be one of the highest paying online survey sites in the industry. Although it may take some time before reaching the minimum point for redemption strictly on doing survey, you can maximized your earning and speed up by taking advantage of the powerful affiliate program that GTM provided. Overall, I am very satisfied with their service and if you want to find the best deal in free online survey sites to earn extra cash, then GTM is definitely the site to join. And by putting in some work, it may be your best online income producer among the earn cash online survey sites.