Ravenous is a Java based webserver which does not in any way attempt to implement any parts of the Java Enterprise Edition standard. Instead it aims to provide you, the developer, with a simple easy to grasp way of developing solid high performance web sites in Java.
Canoo WebTest is a free open source tool for automated testing of web applications.
It calls web pages and verifies results, giving comprehensive reports on success and failure. The White Paper provides an overview of the features and the design rationale. Detailed information is provided in the Manual Overview as well as the Install and Troubleshooting guides.
Aranea is an Open-Source Java MVC Web Framework that provides a common Object-Oriented approach to building the web applications, reusing GUI logic and extending the framework. It comes with out-of-the-box support for nested flows and database-backed query browsing. Additionally it serves as an integration platform, allowing free intermingling of arbitrary frameworks, components and applications.
Wufoo's form builder is the easiest way to create and style beautiful HTML forms, online polls and event registrations without writing a single line of code.