So if they need some money, what is a better revenue model for them? - charge some token amount of money to projects (harms the ecosystem, probably not a good

So if they need some money, what is a better revenue model for them? - charge some token amount of money to projects (harms the ecosystem, probably not a good idea) - charge some amount for projects to host old versions, or for users to access old versions (same idea as the first, just less so) - charge for access to source jars - paid javadoc hosting - rate-limiting for free users (the "file locker" model; particularly effective at convincing people sharing an office IP into paying up) Any others?