load
Lazy Image Loader
Lazy loader is a jQuery plugin written in JavaScript. It delays loading of images in (long) web pages. Images outside of viewport (visible part of web page) wont be loaded before user scrolls to them ...
Loading external content with Ajax using jQuery and YQL
Tutorial and live examples of loading external content (on other domains) with Ajax in jQuery.
Ajax dynamic content
Free Ajax load content script from DHTMLGoodies.com
FrameReady
Frame ready with jquery is a plugin that generates the content and load the element in a frame that behaves like a local document.