Maybe best idea would be to have a faucet that collects all the amount inside itself (including referrals). And at any time the visitor could decide if he wants get paid by MicroWallet, FaucetBOX or any other service that will appear.
The biggest problem is:
Each user must then collect on each site his Satoshi. He need a big time for a payout.
I believe, that is not a big motivation to visit our sites.