Easy Slider plugin enables images or any content to slide horizontally or vertically on click. It is configurable with css alone. So, basically you link to plugin file, set the content up and style it with css. 
Slinky Slider loads a user defined number of HTML files into panels. The panels are stacked up horizontally inside a nominated container. Once the panels have been loaded, all bar one are collapsed to a clipped small size. An automatic animation cycles through the panels showing the content of each in turn. When the user mouses over a panel, it expands and the automatic animation stops. The panel content can be full HTML, flash or other media, or just plain image references.
Pikachoose is a lightweight Jquery plugin that allows easy presentation of photos with options for slideshows, navigation buttons, and auto play. Pikachoose is designed to be easily installed, easy to setup, and well all around easy.
jQuery Animated Innerfade is an animated slide show based on the work of Torsten Baldes : Innerfade, with additional functions: slide effect on large images, prev, pause, next functions, an optional background frame and a title panel.
Easy POP Show is a full screen show for slide, news or anything like Image Gallery, Photo Gallery and Online Instruction. A simple javasript slider for all purposes.
This dynamic JavaScript slideshow is feature packed and under 5KB. It is the long awaited update to my previous script here. A few new features include description support, link support, no naming restrictions, portrait image support, graceful degradation and active thumbnail status. This script was built ground-up and will soon be included at scriptiny where all my scripts will be added as they are updated, debugged and incorporated in the new TINY namespace.
Want to display images as an automatic slideshow that can also be explicitly played or paused by the user? Simple Controls Gallery rotates and displays an image by fading it into view over the previous one, with navigation controls that pop up when the mouse rolls over the Gallery.
Agile Carousel is a jQuery plugin that allows you to easily create a custom carousel. Call Jquery UI to enable many different additional transition types and easing methods. It uses PHP to draw images from the folder you specify. Configure many different options including controls, slide timer length, easing type, transition type and more. 
I guess pretty much everyone has seen Barack Obamas website by now, which is clearly one of the prettiest of all candidates we have heard of so far. Not only is it an example of state-of-the-art design, but it is also nice to navigate and interact with. I decided to imitate the homepage slideshow. I had already experimented with similar animated lists, which allowed me to have it ready within minutes.