IsabelMarco: http://www.linkbucks.com/link/2dca1126

One of the most respected P2C sites online. There are about 10- 15 ads per day. Payout is $9 and is made in a few days.
TakeTheGlobe: http://www.linkbucks.com/link/776f178b

This is also a very highly respected P2C site. There are between 40-50 ads a day. They last 20 seconds and are half a cent each. Payout is also instant.
Bux.bg: http://www.linkbucks.com/link/757e605c

It has 15-25 ads a day. I cent each, with $10 payout.
DailyClicks: http://www.linkbucks.com/link/d9a8c6b2

This is the biz site as opposed to the .com site, which was a scam. The two are owned by different companies- this site actually pays. It has anywhere between 20-50 ads a day, sometimes more. Ads are 1c each, payout $10.
Visit4Cash: http://www.linkbucks.com/link/f11fae5f

Pays 5c per ad. This is a legitimate site- don't be suspicious of the high ad amount. Ads are 45 seconds long and payout is $35.
Pay2Surf: http://www.linkbucks.com/link/41214130

Ads vary between 5-80c. The price constantly changes so you have to keep coming on and see when there's a high price. Cashout is $45. This site is definetely worth joining. Owned by Visit4Cash.
Lastly:
LinkBucks: http://www.linkbucks.com/referral/4478

This site allows you to make money by having people click your links. A unique way to earn money.