jQuery hoted at Google.
https://developers.google.com/speed/libraries/
JavaScript Libraries and Functions
Get access to data on 26,192,404 websites that are Google Hosted jQuery Customers. We know of 2,000,001 live websites using Google Hosted jQuery and an additional 24,192,403 sites that used Google Hosted jQuery historically and 1,152,300 websites in the United States.
Get a list of 26,192,404 websites using Google Hosted jQuery which includes location information, hosting data, contact details, 2,000,001 currently live websites and an additional 4,142,155 domains that redirect to sites in this list. 24,192,403 sites that used this technology previously and 1,152,300 websites in the United States currently using Google Hosted jQuery.