CakePHP enables PHP users at all levels to rapidly develop robust web applications.

• No Configuration - Set-up the database and let the magic begin
• Extremely Simple - Just look at the name...It's Cake
• Active, Friendly Community - Join us #cakephp on IRC. We'd love to help you get started.
• Flexible License - Distributed under the MIT License
• Clean IP - Every line of code was written by the CakePHP development team
• Best Practices - covering security, authentication, and session handling, among the many other features.
• OO - Whether you are a seasoned object-oriented programmer or a beginner, you'll feel comfortable

Symfony is a full-stack framework, a library of cohesive classes written in PHP5. It provides an architecture, components and tools for developers to build complex web applications faster. Choosing symfony allows you to release your applications earlier, host and scale them without problem, and maintain them over time with no surprise. Symfony is based on experience. It does not reinvent the wheel: it uses most of the best practices of web development and integrates some great third-party libraries. Thousands of developers already trust symfony for their applications! New users join the community every day, and that makes of symfony the most popular PHP5 framework around. A large community means easy-to-find support, user-contributed documentation, plugins, and free applications.

Echo is an open-source framework for developing rich web applications. From the developer's perspective, Echo behaves as a user interface toolkit--like Swing or Eclipse SWT. AJAX technology is employed to deliver a user experience to web clients that approaches that of desktop-based applications. Echo applications can be created entirely in server-side Java code using a component-oriented and event-driven API (applies to Echo2 and Echo3) or as client-side applications written in JavaScript (applies to Echo3 only).

jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is designed to change the way that you write JavaScript.

script.aculo.us provides you with easy-to-use, cross-browser user interface JavaScript libraries to make your web sites and web applications fly. What's inside? animation framework, drag and drop, Ajax controls DOM utilities, and unit testing. It's an add-on to the fantastic Prototype framework.

Extensions: the future, today. DojoX is the home to many of the most creative projects in the Dojo universe. Inventive. From unified 2D and 3D drawing, charts, Comet, cryptography and offline features...DojoX is the place to look for the most inventive things in the Ajax world today. Innovative. DojoX is the incubator for many truly innovative ideas –from DojoX Wires to Dojo Offline–many of which will find their way into the Dojo Core or Dijit. New features–all the time. There's never a shortage of ideas finding its way into DojoX; new ideas are created all the time, giving DojoX a vitality unparalleled in the Ajax world today.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you're a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you're tired of ponderously large and thoroughly undocumented frameworks

The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. The YUI Library also includes several core CSS resources. All components in the YUI Library have been released as open source under a BSD license and are free for all uses.

Rialto (Rich Internet Application Toolkit) is ajax-based cross browser javascript widgets library. Because it is technology agnostic it can be encapsulated in JSP, JSF, .Net, Python or PHP graphic components. The purpose of Rialto is to ease the access to rich internet application development to corporate developers. Ideally a Rialto developer have neither need to write or understand DHTML, Ajax or DOM code.

Writing web apps today is a tedious and error-prone process. Developers can spend 90% of their time working around browser quirks. In addition, building, reusing, and maintaining large JavaScript code bases and AJAX components can be difficult and fragile. Google Web Toolkit (GWT) eases this burden by allowing developers to quickly build and maintain complex yet highly performant JavaScript front-end applications in the Java programming language.