http://www.scribd.com/doc/12918020/Linux-Starter-Pack; The Linux starter pack. This is very good as an introduction to the Linux desktop and the various utilities available.
http://tille.garrels.be/training/bash/; Introduction to Linux guide for beginners. This is a good resource if you want to learn more about the Linux shell and usage in general.
http://securitron.securitronlinux.com/lc/rute/; Rute User’s Tutorial and Exposition. The definitive Linux resource for new users. This is the best resource for learning about PC hardware, Linux shell and useful commands.
http://en.flossmanuals.net/; FLOSS manuals. A website with many manuals for Free Linux Open Source Software.
http://www.advancedlinuxprogramming.com/alp-folder/; The Advanced Linux Programming manual.
http://linux-training.be/files/books/LinuxFun.pdf; Linux Fundamentals. An excellent Linux resource for anyone who is using this free and open desktop OS.
http://www.tldp.org/LDP/intro-linux/intro-linux.pdf; The Linux Documentation project – Introduction to Linux. A good read for those users that are new to Linux.