I just read that Google is going to host a number of Javascript libraries on their own infrastructure. What that means is, anyone using any of these JS libraries doesnt need to bother about hosting any of these libraries on their own server and that also means that there is now no need to look for latest and greatest versions of these libraries and keep local copies updated.
This, to me, sounds like a great idea as it can save a fair amount of time and effort that is involved in settings these libraries up.
The libraries that are currently supported are :-