Your country: US
Reward types: Cash and gift vouchers
Incentives per survey: 1 to 5 US$
Cash out: from 10 US$
Number of invites: about 8 surveys in a month
Age to join: from 18 years
Prize draws: Several times a year prize draw for 10,000 US$ and many different sweepstakes up to 500 US$ every day (e.g. one member wins 10,000 points every day) or as new member
Comments: Registration is possible only by a computer or laptop, and NOT via mobile Tablet or Smartphone

Your country: US
Reward types: Sweepstakes for cash only
Number of invites: regularly due to sofware use plus occasional surveys
Age to join: from 18 years
Prize draws: Monthly $ 10,000 cash for 10 winners, stay active on the panel
Comments: This is a Nielsen special panel (world's major market research institute). You need to install software, which permanently tracks what Web-sites you visit - online surveys may be conducted on internet usage accordingly.

Your country: US
Reward types: Cash
Incentives per survey: 0,50 to 3 US$
Cash out: from 20 US$
Number of invites: about 15 surveys in a month
Age to join: from 18 years
Prize draws: New membership prize draw for 2,500 US$ and monthly prize draws
Comments: Get free products to test at home

Your country: US
Reward types: Cash and sweepstakes
Incentives per survey: 1 to 5 US$
Cash out: from 5 US$
Number of invites: about 16 surveys in a month
Age to join: from 18 years

Your country: US
Reward types: Cash and sweepstakes
Incentives per survey: 1 to 5 US$
Cash out: from 50 US$
Number of invites: about 15 surveys in a month
Age to join: from 18 years
Prize draws: Sweepstakes with cash prizes for 300 US$ daily and 5,000 US$ monthly