Viewfruit is one of the best site survey site online today that can give you timely and a steady supply of survey. However, they are not available in the US or other parts of the world. Based on my reasearch online they are only available in India, Philippines, Indonesia, Malaysia, and Singapore:

http://sg.viewfruit.com/ - Singapore
http://ph.viewfruit.com/ - Philippines
http://in.viewfruit.com/ - India
http://id.viewfruit.com/ - Indonesia
http://my.viewfruit.com/ - Malaysia

Most of their surveys according to my friend are about consumers so you find it easy and enjoyable to do since it's not boring. They have a point system, and surveys can give you 400 to 600 points, which you can convert to Paypal cash in which 500 points can be converted to $1. Surveys can range from 15min to 40min on the average.

This is a good source of additional income, however I haven't tried it myself since it's not available in my country but according to my friends who lives in those countries this site is legit and they pay on a timely manner.

If you live in those countries you can JOIN HERE, again they are not available here in the US.