Ning is starting to look kind of cool:
All content is available to everyone else, unless it’s marked private.
So what we have is not a hosted framework service, but an ecosystem. An ecosystem that not only allows but relies on the ideas of remixing, mashups, and openness.
I haven’t got a developer key yet, nor looked through any docs – but hopefully on top of that it’s easy to aggregate to your own apps outside of ning.