AIP surveys

I recommend this website because it is really simple to join and not difficult to get the vouchers. Within 6 month, I got S$10 vouchers twice.
it is a Japanese company and has established business in another 5 locations, including
China (http://cn.aipsurveys.com),
Korea (http://kr.aipsurveys.com),
Taiwan (http://tw.aipsurveys.com),
Singapore (http://sg.aipsurveys.com
and Hong Kong (http://hk.aipsurveys.com).
In Singapore, you can redeem vouchers or checks.


note: referring friends does not get extra points.
If you doubt the payment, leave an comment here. I can send you payment proof.

Here is the proof.


One letter I got from AIP (I removed my personal address for the sensitivity).