Google AJAX Libraries API - Google Code
Google works directly with the key stake holders for each library effort and accepts the latest stable versions as they are released. Once we host a release of a given library, we are committed to hosting that release indefinitely.
The AJAX Libraries API takes the pain out of developing mashups in JavaScript while using a collection of libraries. We take the pain out of hosting the libraries, correctly setting cache headers, staying up to date with the most recent bug fixes, etc.
Announced a year ago, but somehow I didn’t find out about it till now. This’ll make it a lot easier to write Greasemonkey scripts that make use of any of these libraries (jQuery, Prototype, and others).
