Open Source Software CDN
osscdn.com
osscdn.com
* Monoculture is bad
* http://en.wikipedia.org/wiki/Common_cause_and_special_cause_...
Ideally, given the way CDNs work, every CDN would have the latest version of everything you could want. The best way[1] to do that, I would think, would be to have a single repo with an open-contribution model to take on as many libraries as possible (like cdnjs is already doing), and then to mirror the resulting library-set on every CDN. This way, a library-author could push an update to this single repo as part of their release, and it would be immediately reflected across the Internet.
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[1] Okay, the actual best way would be for browsers to request resources from a set of known arbitrary CDN peer-nodes using content-hash URNs, and for the CDN-nodes to present themselves as something like a Fossil server, while pulling from their own peers in a DHT-like arrangement on cache failure. Sort of like Freenet, but without the secrecy.
There's also a very cool public CDN API https://github.com/jsdelivr/api