PTC Bay

Pay per ad = up to $ 0.01 per click and $0.01 for every referral click.
Min ads = 6
Min to cashout = $ 2.5
Payout methods = Alertpay (instant)

Gaga Bux

Pay per ad = up to $ 0.02 per click and $0.015 for every referral click.
Min ads = 10+
Min to cashout = $ 2
Payout methods = Paypal and Alertpay (5 to 7 working days )

JM GOLD

Pay per ad = - Every 1000 ads viewe will give you 1 silver bar.
                     - Every 50 referrals will give you 1 silver bar.
Min ads = 8 (Regular member)
Min to cashout = $ 5 (Regular member)
Payout methods = Paypal and Alertpay ( 7 business days to Regular member )
Every silver bar will give you a monthly income of 20%, which means $5 of monthly payment for life.

EASYHITS4U

Pay per ad :

- Every 1000 viewe  sites you will receiver $ 0.30

- Every person you refer  that surfs at least 100 sites you will receiver $ 0.10

Min ads : No Limid

Min to cashout : $ 3

Payout methods : Paypal and Alertpay ( 5-7 business days )

Five – tier referral program (10%, 5%, 3%, 2%, 1%).
It means that you'll receive 10% of hits earned by people whom you've directly referred, 5% of hits earned by people referred by your referrals and so on through 5 tiers!

Earn Easy Cash

Pay per ad = up to $ 0.001
Min ads = 20+ (standard)
Min to cashout = $ 1
Payout methods = instant (paypal and alertpay)

Plus Clix (Brother Site of Earn BZ)

Pay per ad = up to $ 0.01
Min ads = 4 (standard)
Min to cashout = $ 4 (every 1st and 15th in the month)
Payout methods = instant (paypal and alertpay)

Earn BZ

Pay per ad = up to $ 0.01
Min ads = 4 (standard)
Min to cashout = $ 4 (first), $ 8 (every cashout after that)
Payout methods = instant (paypal and alertpay)