DollarSurvey

This is a really convenient survey site. You simply enter your e-mail address and take a survey. If you qualify, $1 will be sent to your paypal account automatically in about 1-2 weeks. You usually can take a couple of surveys a day-depending on what they have in their system. Just make sure the e-mail address you enter is your paypal address. The only downside is that there are no referral fees to be earned.