10 Sites that use jQuery, 12 use prototype, 4 use mootools, 1 Yahoo! UI

With the heavy use of “AJAX” and flashy javascript techniques being used on the web today, I really wanted to see who is using which javascript frameworks. This isn’t meant to be a popularity contest at all but actually to see what other major web sites are using on their high traffic production web sites.  Some sites still write all of their own custom js framework-like code for their site which has its advantages and disadvantages.  This is also meant to show you that these big name sites are using the same open source javascript frameworks that we are using on our sites.

I obtained most of the sites from off the top of my head with quite a few mixed in from the alexa top 100.

Jquery

• bestbuy.com
• ign.com
• digg.com
• typepad.com
• nbc.com
• kmart.com
• passpack.com
• amazon.com
• dell.com
• craigslist.org

Prototype

• espn.com
• fox.com
• coca-cola.com
• cnn.com
• photobucket.com
• comcast.net
• hulu.com
• nfl.com
• nytimes.com
• att.com
• nba.com
• apple.com

Mootools

• wendys.com
• about.com
• usps.com
• cnet.com

Yahoo! UI

• linkedin.com