Below lists some of the survey companies which I have joined:

Company #1: YourSay
(http://calvinwoon.com/survey/yoursay)

Established in 1997, YourSay is one of the first companies in the world to help marketing and research companies worldwide gather consumer opinions via the Internet. YourSay is not a market research company and does not offer market analysis services. Instead, it works with marketing and research companies to help provide them with consumer opinions. Headquartered in Singapore , it not only provides online surveys but also phone surveys and focus groups. So you might want to start with YourSay.

Company #2: Survey Savvy
(http://calvinwoon.com/survey/surveysavvy)

Well, SurveySavvy is based also in the USA and is part of a market research leader, Luth Research, LLC. They send out online surveys to their members. They also require members to fill up profiles for them before they send out their surveys. Other than earning through surveys, you also get to earn money is through their patented 3 level referral payment system (Patent No. 6446044) where they pay members an average of $2 for every survey their referrals complete (Level 2) and $1 for every survey their referrals’ referrals complete (Level 3).

Company #3: My Survey Asia
(http://calvinwoon.com/survey/mysurveyasia)

MySurveyAsia is targeted at Asians and they have a research panel which is an online community of Singapore residents. The community is managed and operated by TNS which is a member of the TNS group of companies – the second largest marketing research organization in the world.  They look for members participate in market research studies and to share their thoughts on products, services and a wide range of topics.  They will match your profile to what is required of the survey and mail you the survey.

List of Survey Sites 

To be honest, I have not personally tried the membership to these survey sites. But I do know that when you sign up a membership with these sites, they will provide you with a huge database of survey companies. Hence, rather than you searching aimlessly for these survey companies to sign up, you get access to this database for a small sum. I shall list some of the survey sites which are more popular:

1. PaidSurveysOnline

2. SurveyScout

3. SurveyIncomeSystem