CDNs for common JS and CSS 13. February 2014 mhouston Technology (0) The big corporate types : Google (https://developers.google.com/speed/libraries/) Microsoft (http://www.asp.net/ajaxlibrary/cdn.ashx) The most useful : Bootstrap CDN (http://www.bootstrapcdn.com/) jsdelivr (http://www.jsdelivr.com/) cdnjs (http://cdnjs.com/) Cached Commons (http://cachedcommons.org/) For reference : CDN Catalog (http://cdncatalog.com/)