It is probably best to bundle all of your application code and plugins into one big JavaScript file, while loading jQuery itself from one of the CDNs (and exclu

It is probably best to bundle all of your application code and plugins into one big JavaScript file, while loading jQuery itself from one of the CDNs (and excluding it from the bundle). I think it's only when this bundle file gets massive or initial page load time is critical that it makes sense to load individual modules on-demand. When your application gets so big that it uses a dozen plugins and a dozen of its own files, the HTTP requests caused my loading them individually will start to hurt.