Lightbox is the de-facto standard image popup and image gallery script, lots of variants have been produced

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Extended and expanded version of lightbox

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Another smooth image gallery, e2 gallery offers a thumbnail viewer type interface, it is really easy to use and maintain photos on a website

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If you need a alternating banner image script with url links embedded then this alternative slideshow script is for you. Great script to display alternative ad banners on your site, beautifully smooth transitions

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Frogjs is an alternative gallery, its a great when you want to show 3 images on the same webpage, clicking on the left or right image thumbnail will transition to the next image in a smooth style

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This is the expanded carousel script, available free of course from Yahoo UI library contains fantastic support and lots of different types of styles including spotlights, circular,  partial reveal, image and text, ajax loading time defer, paginator and the ARIA plugin

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