Office Software
Website Software
CMS
Time Management
Kimai is a free open source timetracker. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action
Issue Management
The Bug Genie web-based issue tracking system
System Utilities
Darik's Boot and Nuke ("DBAN") is a self-contained boot floppy that securely wipes the hard disks of most computers.