FOG is a free open-source cloning/imaging solution/rescue suite. FOG can be used to image Windows XP, Vista, Windows 7 and Window 8 PCs using PXE, PartClone, and a Web GUI to tie it together. Includes featues like memory and disk test, disk wipe, av scan & task scheduling.
The Open CD Server project shares CD-ROM's on a heterogenous network. It is a GPL'd viable alternative to current software, thin-server, and CD Jukebox solutions. It is software based, and uses a web interface for easy administration.
To keep track of various stuff here at home.
Like books, records (CD, LP), video/DVD etc. There isn't a web based database that I've found that is free that keeps track of all this.