Tux Paint is a simple and entertaining drawing program geared towards young children. It has a simple interface, sound effects, and a cartoon character (Tux, the Linux penguin). Along with drawing brush strokes, lines and shapes, you can also enter text and place "rubber stamp" (or "sticker") images on the picture. Tux Paint is extensible, and could be useful in an educational environment (such as a grammar, elementary, or grade school). It's portable across numerous platforms, and runs well even on slower systems like the Pentium 133MHz.
UseBB is a PHP/MySQL forum package. Unlike other popular forum systems, it does not strive to have as many features as possible, but to be one of the easiest and most usable forum packages, limiting the basic feature set to only the essential. It is an ideal solution for small to medium-sized Web sites which require an easy to use forum package without the bloat, that produces standards compliant output, and is secure and easily configurable.
WaveMaker is a RAD development tool for Web and cloud apps, with more than double the monthly downloads of any other RAD tool. Its visual, drag, and drop tools flatten the Java learning curve by 92%, enabling any developer to build enterprise Web applications that deploy to a standard Java platform. The WYSIWYG studio creates standard Java applications with 98% less code, boosting developer productivity and quality without compromising flexibility. Applications are cloud-ready and include built-in support for multi-tenancy and elastic scaling.