I wish I had known about cdnjs during my last hackathon, it would have saved me from having to either download the js libraries I needed and host them myself or find them individually hosted by someone else. With cdnjs, I’ve found every library I’ve needed such a jQuery, backbone.js, underscore.js, jQuery Mobile, etc. So definitely give it a try and next time you’re looking for a library, use cdnjs – hopefully, the more people that use it, the more browsers it will be cached on. Happy Hacking…