Clixsense

Clixsense is probably one of the oldest and on time paying paid to click sites available.

Click value: $0.001 to $0.02
Upgrade Membership: $14.95

Advertising:
$0.001 per click (3 seconds)
$0.005 per click (15 seconds)
$0.01 per click (30 seconds)
$0.02 per click (60 seconds)

Payout options:
Paypal: 25 dollars cash out
Alertpay : 10 dollars cash out
Liberty Reserve: 10 dollars cash out

Number of upgrade levels: 1

http://www.clixsense.com/?3284247