[quadrangle]

Except that Gratipay is an ethical community site, whereas Google Contributor is only about rewarding sites for annoying people with ads such that people are willing to pay for them to go away. Google Contributor is about Google pushing everyone to use their system only. So, it's actually not like Gratipay at all, except for the idea of ongoing donations, which even Paypal had long before Gratipay ever started.