What PTC sites are worth in investing in?

wordlinx. PM me and I'll give you my referral link.

If you are about to rent referrals,then cashium is the best site to invest.Because most of the referrals are active when compared to the other sites.I have invested and earned more than $137.00 from this site within a short period of time from this site. They are renting the real members.You can upgrade your account and rent the referrals to boost your earnings..

I suggest you to invest in NeoBux but not in renting referrals. As rented referrals are not so active and you will most probable lose your money as I had. You should upgrade your account and should try to get some active referrals. If you can refer members then you can earn good amount of money from them. If you don't have referrals then I will also not suggest upgrading your account as in the end you will be losing some money if you don't have any referral to reap full benefits of your upgrade.