I am member of starclick, I upgraded to Gold membership, but to my surprise, the gold membership is for one month which cost $29. it is huge amount. But after one month i was not able to cover this upgraded amount. It say in Gold membership that you can earn $ 5 per day, but ads is $1 per day i.e. 100 ads of 0.01 cents and some times it is less, so if you calculate there is not profit and after one month again you have to upgrade.100% payment rather if you meet the terms and conditions.
For pay per click you may check star-clicks. They've been in business for quite a long time