Ajax.NET Professional is one of the first AJAX frameworks available for Microsoft ASP.NET and is working with .NET 1.1 and 2.0. You can find here a quick guide how to get the first Ajax.NET method running.
ATLAS is free framework for quickly creating a new generation of more efficient and interactive Web experiences that work across all the most popular browsers. With ASP.NET AJAX you can create next-generation interfaces with reusable AJAX components, enhance existing pages using powerful AJAX controls with support for all modern browsers. Continue using Visual Studio 2005 to take your ASP.NET 2.0 sites to the next level. Access remote services and data from the browser without tons of complicated script.
Code Snippets is a public source code repository. It allows to easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world.
DHTMLgoodies.com offers a library of DHTML and AJAX scripts.
DynAPI is an open-source project initiated by Dan Steinman, created to make cross-browser Dynamic HTML a reality. The DynAPI library uses an object-oriented approach to solve problems associated with scripting for both Netscape and Internet Explorer.
Taconite is a framework that simplifies the creation of Ajax enabled Web applications. It’s a very lightweight framework that automates the tedious tasks related to Ajax development, such as the creation and management of the XMLHttpRequest object and the creation of dynamic content. Taconite can be used with all modern Web browsers (Firefox, Safari, IE, Opera, and Konqueror, to name a few) and can be used with any server-side technology including Java EE, .Net, PHP, or any language that lets you return XHTML.
DHTML Kitchen is a resource for ready-made or custom-built DHTML scripts.
overlibmws DHTML Popup Library Download and Test Directory for the overlibmws DHTML Popup Library
Zapatec AJAX Suite includes mature, feature-rich widgets to cover all your development needs. Modular architecture gives you the flexibility to use a few widgets today and migrate to using the full suite on an as-needed basis. No need to learn a proprietary XML dialect or a complicated new platform — use the same tools you currently do, like HTML, CSS, JSON and more.
Rico provides responsive animation for smooth effects and transitions that that can communicate change in richer ways than traditional web applications have explored before.
Ruby on Rails is a full-stack framework for developing database-backed web applications according to the Model-View-Control pattern.
sardalya is a cross-browser compatible system which is designed to work in all DOM-supporting browsers. s@rdalya has been tested with Internet explorer 6, Netscape navigator 6-7-8beta, Mozilla 1.5-FireFox 1.0.3, Opera 7.0-7.2-8Beta and more.
Tabtastic is a simple way to implement tabs on your page using CSS, a little JS, and semantic markup which degrades gracefully on browsers with CSS unavailable or disabled. Not only is it easy to use and accessible for screen-readers, but it supports multiple (nested, even) tabsets on the same page and allows users to bookmark the page loading to a specific tab.
Zephyr is an ajax based framework for php5 developers.