Ssset is a single-player card game where your task is to choose 3 cards that are (according to the attributes of color, number, form, and filling) either all 3 the same or are pairwise different.
Wnbrowser is a GUI frontend for the WordNet English thesaurus/ontology. It uses the JUNG library to display an attractive representation of the lexical database.
A pure Java Git solution.
A suite of addons for Nagios.