Both referral and PTC contest have started now. Will be running until end of April, then we will have a little longer contests for the summer period.
I also decided to adapt same pricing for all 4 sites,
Means are now even cheaper during the sale (I have reimbursed price difference users who have bought membership already).
We have dropped deleting direct referrals all sites wide from $0.10 to $0.05
And some advertising have dynamic pricing, means will start increasing when sites active users increase.