Cashium.net is a new and improved PTC launched on July 23, 2009. Cashium.net is very unique designed and the script is coded from scratch. The owners of Cashium.net are from GPTBank, a famous website among PTC users which offers ref-backs for joining and clicking on websites they propose.
I registered at Cashium.net and recommend everyone who wants to earn money through them.
Minimum payout is $ 2 via AlertPay / PayPal.

* $0.01000 for your own clicks.
* $0.005 for your 1st tier referral's clicks.(The first 50 members your are referring)
* $0.004 for your 2nd tier referral's clicks.(The second 50 members you are referring)
* $0.003 your 3rd tier referral's clicks.(The third 50 members you are referring)
* $0.001 for your 4th tier referral's clicks.(All the members beyond 150 members)
* $0.007 for your rented referral's clicks.
* 400 rented referrals limit.