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Google Trial Community. Join a Health Research Study by Harvard Medical School, Boston Children's Hospital and Google. Brought to you by Centercode. Ages not mentioned to take part in market research.

BlackBerry Beta. Another branch of Centercode. Ages not mentioned to take part in market research. We have been paid by this market research company. You spend your time testing products, apps, or web

Prize Rebel.All ages welcome but must have parents permission to join if under the age of 13 to take part in their international market research studies. PrizeRebel is a free GPT (get-paid-to) reward

Opinion Panel Research. You earn credit towards Amazon vouchers. Join 140k students & teens and get paid for your opinion Join today and get £10 worth of vouchers!

Out Now LGBT Research. CINT panel ages 13 and older unless other wise noted. Out Now is now working with Cint so we can now offer LGBT people the chance to sign up and participate in research, both LG

Retard.CZ. Ages 15 and up. CINT Survey panel.