Dee's Sea Adventure is educational software for children. It has three mini games that involve matching, hide and seek, and finding the difference.
OrderlyQ is a call center queue solution. Instead of forcing callers to wait for an available agent, OrderlyQ tells them when there will be an agent available and reserves a place at the head of the queue when they call back.
A Java library for doing conversion between JSON and Java.
A suite of addons for Nagios.