Simply add the green text form example here.
all your static object linkings rewrite according example below
<img src="images/logo.gif" />
rewrite to
<img src="http://autocdn.appspot.com/www.mydomain.com/images/logo.gif" />
You can use it for all static objects, the only one limit is size of the object - must be 1MB max !
A content delivery network or content distribution network (CDN) is a system of computers containing copies of data, placed at various points in a network so as to maximize bandwidth for access to the data from clients throughout the network. A client accesses a copy of the data near to the client, as opposed to all clients accessing the same central server, so as to avoid bottleneck near that server. wiki