Drawing, graphics conversion, software development, administration.
The ultimate cataloguer
Various small and useful command-line utilities
NO LONGER MAINTAINED
An open source search engine with RESTFul API and crawlers
Mature LDAP, LDIF and DSML client with i18n support.
Open Source, tasks, bug tracking, agile scrum, timesheet, wiki
A software tool to bring MySQL to the Web
E-Sport Drivers for the Razer Nostromo
Networking framework for Java applications
Kerberized Messaging Toolkit for Java
Electronic Document Index And Search
although fully functional, this is a pre-framework that you can extend