Popular AJAX libraries including:
are now being hosted on Google’s servers for use on your site or applications. Why would you link to a file hosted on Google’s server? Because it is optimized for speed by providing the libraries in the following way:
- Far future expires headers to increase caching
- Delivered using Google’s extensive content delivery network
If you are using any of these AJAX libraries, you would be foolish not to seriously consider taking advantage of this service.