Pinguy Builder - A fork of Remastersys
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Cubic - Cubic (Custom Ubuntu ISO Creator) is a GUI wizard to create a customized bootable Ubuntu Live CD...
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Linux Live Kit - Linux Live Kit the ultimate way to bring your linux to life. Create your own live distribution
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.