Since 1994, Greenfield Online serves the online data collection needs of more than 300 market research firms including the
largest research companies in the industry and help companies get
closer to their consumers by gathering consumer feedback. Greenfield Online is considered one
of the leading online panel companies in the industry.
Join Greenfield Online Panel =>> Greenfield USA,
Greenfield Canada
Compensation/Rewards
Greenfield Online rewards members
cash (via Paypal) and/or sweepstakes entries for taking online surveys.
Greenfield Online offers members cash rewards and sweepstakes entries
for taking their surveys. You can request payment from their website
after login your account, and they pay via check or Paypal. I have
cashed out by Paypal twice and it takes about 2 - 4 weeks to receive
payment.
There is NO minimum cash-out requirement.
Age Requirement:
At least 13 years old to join Greenfield Online Panel
Open to Countries:
United States, Canada
My Experience:
I joined Greenfield panel around November 2004. At that time I have to say I was not happy with them - it seemed all the surveys are just for sweepstakes and I didn't get credit for the cash surveys I took! I was angry like lot of others and almost gave up on them. However, starting March 2005, I noticed improvement of Greenfield, and they were getting better and better! Since then, I have not experienced any problems with Greenfield in terms getting paid.
Many of them surveys from Greenfield Online just offer sweepstakes entries, but Greenfield Online does have many cash surveys, and they also have more online focus groups/interactive surveys that pay much more than regular paid surveys. For me, besides cash surveys, I have had the opportunities to do their online focus groups/interactive paid surveys almost at least a few times a year.
Greenfield started offering Payapl options last year late 2007. Since then I have cashed out a few times and I have received my cash payment via Paypal within about 2 - 4 weeks.
Overall, Greenfield Online is a great online paid survey panel, and I definitely recommend them!!
Paid Survey Reviews 
just kept giving me surveys for sweepstakes when I thought they were cash surveys. I'd expect to earn some cash after that many but oh well. Your site is not the only place where I've seen Greenfield ranked so high. Demographics? I do not know about that because I live in Boston and you don't get no more diverse than here. Personally, I wouldn't waste my time with them but to each is own. 
is horrible for the amount of time invested and number of surveys to complete in order to win. I've done over 35 surveys with them like a fool and nothing in return but a bunch of sweepstakes. The ROI is dismal but I guess you must have the inside track with them. Otherwise, I like your site and keep up the good work.