jQuery Loading Plugins
loadingDots is a super simple and cross-browser jQuery plugin that displays animated loading dots for ajax content loading.
Nimble Loader is a jQuery based loading bar generator that helps you quickly and simply create loading effects with animated loading spinner for your projects like ajax content loading, content fetching/refreshing, time counting etc.
pietimer is a simple jQuery plugin that allows you to create a circular pie graph-like timer using CSS3 and jQuery. Good for countdown timer or loading bar.
A Progress Bar implemented entirely using CSS 3 gradients, shadows, and border-radius, with a touch of animation. This progress bar will work in the latest version of all major browsers to provide full compatibility with animation, gradients