jQuery version 1.7.1
http://blog.jquery.com/2011/11/21/jquery-1-7-1-released/
JavaScript Libraries and Functions
Get access to data on 5,767,810 websites that are jQuery 1.7.1 Customers. We know of 1,585,230 live websites using jQuery 1.7.1 and an additional 4,182,580 sites that used jQuery 1.7.1 historically and 762,904 websites in the United States.
Get a list of 5,767,810 websites using jQuery 1.7.1 which includes location information, hosting data, contact details, 1,585,230 currently live websites and an additional 612,240 domains that redirect to sites in this list. 4,182,580 sites that used this technology previously and 762,904 websites in the United States currently using jQuery 1.7.1.