Spring is a lightweight Java/J2EE application framework based on code published in "Expert One-on-One J2EE Design and Development" by Rod Johnson. It includes powerful JavaBeans-based configuration management applying Inversion-of-Control principles, a generic abstraction layer for transaction management allowing for pluggable transaction managers, a JDBC abstraction layer, integration with Hibernate, JDO, Apache OJB, and iBATIS SQL Maps, AOP functionality, and a flexible MVC Web application framework with multiple view technologies. There is also a .NET port available.
Chessweb is a J2EE chess game Website. It is a pure Java servlet implementation of a two-player chess game. Two players log into the Web site, see an image of the current board in their browser, and make their moves. The differentiating features of chessweb (e.g. versus WinBoard / XBoard) is that it's an extremely lightweight implementation written completely in Java (nothing more than an app server and browser is required). Furthermore, the client end is DHTML only, and verified to works with FireFox 1.0.6 and IE 6.
The ZK Mobile is a ZK extension that enables ZK applications to run on mobile devices with little programming. With the event-driven components and a markup language, programming is as simple as programming desktops and designing screens is as easy as authoring HTML pages. No JavaME prerequisite is required.
Salvation Focus is an application that encourages a group of people to pray for others they know who do not know Jesus Christ as Lord and Saviour. Salvation Focus is a small Flash application that can be included on pretty much any Web site. There is also an administrative interface for adding people to pray for, the people that asked for prayer, and some contact info.
Piggydb is a flexible and scalable knowledge building platform that supports a heuristic or bottom-up approach to discover new concepts or ideas based on your input. You can begin with using it as a flexible outliner, diary or notebook, and as your database grows, Piggydb helps you to shape or elaborate your own knowledge. Piggydb is a Web application provided as a self-contained package that contains a Web server and database engine.