Google Page Speed is telling me to leverage browser caching for only this object:
https://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js (1 hour)
As this is being delivered from an external server, I guess I can't tell browsers to cache it when they visit my site? I am using IIS7 and have already implemented caching for 7 days (as per the config listed here https://stackoverflow.com/questions/642954/iis7-cache-control),
Therefore, should I copy the file to my web server and then reference and cache it on there?