Most of these sites charge amembershipfee, allowing subscribers to play a variety of games against each other, offer reviews of new games and provide opportunities for game-chat.
Some health insurance plans will reimburse you a preset sum towards your gym membershipfee if you log a certain number of visits in a six-month period.
For day-to-day healthcare, DPC is paid for in a model that is akin to a gym membershipa flat monthly fee regardless of how much one uses it (though some have co-pays mainly due to state insurance regulations).
It had a revenue stream outside of adverting (with pro membership available for a small annual fee), it had clients on every mobile and desk-bound operating system out there, it was hosting pictures for countless blogs.