Yet another good survey company is ACOP (American Consumer Opinion). Survey invitations are sent by email. First you’re asked a few questions to see if you qualify to do the full survey. If you don’t, you’ll get an entry into a prize drawing. But if you do qualify, you’ll get a definite paycheck of between $4 and $50 depending on the survey length. You’ll receive a check within 4 weeks of the survey closing. (People outside the US and Canada are paid by AmEx Gift Cheques.) Membership is limited to one per household.