Links:
[1] http://www.linuxcommand.org
[2] http://www.tldp.org
[3] http://www.linuxdevcenter.com/linux/cmd/
[4] http://www.linuxquestions.org
[5] http://dmoz.org/Computers/Software/Operating_Systems/Linux/Support/
[6] http://forums.gentoo.org
[7] http://www.linux.org/lessons/beginner/toc.html
[8] http://www.linuxhelp.net
[9] http://www.linuxforums.org
[10] http://www.tuxfinder.com/
[11] http://www.reallylinux.com/docs/consult.shtml
[12] http://www.codecoffee.com/tipsforlinux/index-linux.html
[13] http://www.debianhelp.co.uk/
[14] http://tuxmobil.org
[15] http://www.debuntu.org/
[16] http://debianadmin.com/
[17] http://www.linux-on-laptops.com/
[18] http://linux.byexamples.com
[19] http://sial.org/howto/linux/
[20] http://www.dsl.org/cookbook/cookbook_toc.html
[21] http://www.lowfatlinux.com/#INTRO
[22] http://www.osalt.com/
[23] http://kernelnewbies.org/
[24] http://www.frozentech.com/content/livecd.php
[25] http://linuxhelponline.blogspot.com/2007/09/download-linux.html
[26] http://www.webi.org/osalternative.html
[27] http://www.brunolinux.com/