Sirius - An open-source clone of Siri from UMICH

WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.

Cdw - cdw: ncurses interface for GNU/Linux command line CD/DVD tools

TreeSize - TreeSize tells you where precious disk space has gone to.

Ingram Micro - Delivering global technology and supply chain services to support cloud aggregation, data center management, logistics, technology distribution, mobility device life-cycle and training.

SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.