Modalbox is a really cool dynamic popup window, typical use would be for marketing websites where a nice looking popup window is required, could also be used for enlarging images or website wizard dialog forms

ajax script example here
ajax script demo here
ajax script download here (signup not required)

Lean, mean contacting machine – great little script

ajax script example here
ajax script demo here
ajax script download here

Nice tab content fetch script from dynamic drive, typical use is to dynamically fetch information from an external page, lots of useful documentation to get this set up on your site

ajax script example here
ajax script demo here
ajax script download here

ASK source kit – on the fly page content

ajax script example here
ajax script demo here
ajax script download here

Slick carousel slideshow script using prototype and script.aculo.us

ajax script example here
ajax script demo here
ajax script download here
documentation here

Highslide gallery popup viewer, creates fantastic looking interactive galleries

ajax script example here
ajax script demo here
ajax script download here
api reference here
tutorial here

Really impressive table sorting script perfect for sites that want to give your visitors some interactivity of displayed table data

ajax script example here
dynamic ajax script demo here (8 demos to choose from – bottom of the main page)
ajax script download here

We think smoothgallery is indeed smooth….. lots of options now, timed galleries, timed slideshows, timed image switcher and also sliding transitions

ajax script example here
ajax script demo here
ajax script download here

Dynamically move words around the screen to create or solve a social puzzle, nice humorous script

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ajax script demo here
ajax script download here

Dynamic domain name extension engine, the script dynamically searches for top level domain extensions

Typical example use, would be for a domaineer to get fast results on what top level domains are available, this script currently searches for .com .org .net .info .biz and .us domain extensions….. pretty cool give it a try

ajax script example here
ajax script demo here
ajax script download here