Ajax

No, not that cleaning product. Ajax is moniker recently associated with DHTML/JavaScript-to-server-side scripting bridges, which happens to be much easier to say out loud than XMLHttpRequest

Ruby-based

• taskthis!, a task list manager (via Melo)

PHP-based

• JPSpan
• SAJAX, Dynamic Ajax Tables

.NET-based

• Ajax.NET

Python-based

• AjaxTerm, a terminal shim.

• Spry, an Ajax framework developed at Adobe with a few interesting demos, such as a photo gallery.
• AJAX without XMLHttpRequest, frame, iframe, Java or Flash – primitive, but interesting.
• Lickr, a Greasemonkey script that replaces the Flickr interface with a DHTML one.
• Gregarius, a PHP-based RSS aggregator.
• Kottke’s tweaks
• An Ajax mapping application

• RSS Digest Ajax News Dashboard

• Ajax Patterns

• Google Web Toolkit – not that hot
• Yahoo UI Library – second iteration
• OpenRico
• Prototype
• Backbase – commercial, Community Edition is free for non-commercial use.