1. My favorite has to be Opinion Outpost
You earn points which are then redeemed for Amazon gift codes, who doesn't love to shop at Amazon! They have a low cash out, ($5), surveys credit quickly and codes are emailed immediately. I get tons of surveys from them and usually qualify for about 75% of them. This is a surveys/focus groups only site. I usually make at least $50 a month here (not counting referrals).
2. SurveyHead . Loads of survey opportunities here. Cash out minimum is $1.50 and cash out is $25 for
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I usually make about $75 . (no referral program).
3. E-Rewards Good dollar values here and they pay you a bit even if you don't qualify for a survey as well as for updating your profile information. I usually make about $25 a month here (no referral program).
4. E Poll Short fun polls with good dollar amounts. I usually make about $25 a month here (no referral program).
5. Global Test Market. Frequent survey opportunities with good dollar amounts. $50 minimum cash out. I usually make about $25 a month here (not including referrals).
6. SurveySpot . Frequent survey opportunities here. INSTANT payments via PayPal! $10 minimum cash out. I usually make about $40 a month here (no referral program).
7. Survey Savvy Minimum payout is $1 and payable by check.
I usually make about $275-$300 a month with these 7 programs not counting referrals. With referrals, my income is significantly higher.