Some good advice is to look at the paid to click sections, I think these are very underused, just my 10 eurocents worth

My fave QUICK paying/low min sites are:-
Sterling Rewards - very easy to reach payout, $5 (I got a random payout at $3.17) nice PTC section includes charity links
Z-Cash - an oldy but a goody, $3 minimum (I have no referrals here and still reached payout).
Future Clickers, minimum 50 cents - have paid me twice
2-16 paypal payout $0.6300 (had 4 referrals by then)
1-22 paypal payout $0.5200 (no referrals)
Paid 2 Click - Very small money, but if you are on-line anyway
....Linkburst - they payout every month, no minimum (I have no referrals).
Clicking 2 Rewards - 25 cent minimum.
Paid2Link - 50 cent minimum.
Keep an eye out on the Paid to Click alerts in this forum to help maximise your earnings, if you join the paid to click ones

Dr. G-nome
PS All the above have actually paid me