4 In A Row. Play against Aficio.
A tile mural creation and editing program.
Java Education & Development Initiative
Digital Circuit Simulator
A free program for calculating really big numbers
P2P Bioinformatics Services
Java(tm) Scientific Library.
Version 5.0 release in progress.
Snapshot versions of the mathematics, physics bundles currently available (https://maven.java.net/index.html#nexus-search;quick~jscience)