Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.
Lazy load XT is a jQuery plugin for images, videos and other media
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Pilpil - Progressive Image Loading
A minimal AMD API implementation for use after optimized builds
Very lightweight progress bars. No jQuery
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Version of the QueryLoader by Gaya Design. Preload images with ease.
Load modules on demand (lazy load) in AngularJS
pushState + ajax = pjax