[Someone want to insert some URLs here for what Linux is, where a variety of distributions can be found, etc.? ]
http://www.linux.com/ seems to be a general electronic news website (ala our own http://www.tcl.tk/ ) rather than a 'home' for linux.
Linux itself is, as I understand it, some form of open source software.
D.McC: Uh, yes, specifically some form of open source operating system. It works pretty well; I've been using it on my home desktop computer since 1999.
Linux Links: The Linux Portal Site <http://www.linuxlinks.com > has a lot of free software that runs on Linux, including a number of applications written in Tcl/Tk.
However a variety of commercial entities, including Sun, IBM, Suse, Red Hat, and others, go through the effort to build the sources, provide maintenance contracts, etc. in an effort to add value to the software.
One popular distribution of Linux is Suse - where one of the Tcl community works to maintain a great Tcl presence in the distribution.
Csan: I am using Debian GNU/Linux,[L1 ] which has been my "favorite Linux distribution for long years now, first and foremost for its technical qualities, and the fact that it is Free Software." - I am quoting davidw