hi there- well, you could also say that Git is free, while GitHub is not. But that would be a far-fetched statement because GitHub is currently a free service for (hundreds of?) thousands of users who publish source code in the open (Open Source). In a similar vein, Authorea will be ALWAYS free to author and access public, Open Science articles. At Authorea, we like open, transparent, reproducible research and we are trying to encourage people to publish in the open (Open Science). We hope to set up institutional licenses with universities, so that subscriptions will not be a burden on readers or scientists. This is the best model we can think to benefit science and the public, while keeping us alive. Any comments appreciated.