I learned Linux by spending all my free time asking silly questions or reading the silly questions of others at http://www.linuxnewbie.org which has since changed their name to http://www.justlinux.com/ . Of course this was several years ago so I'm sure their community has changed since I was there last. Both of these URLs work and both take you to the same place so use whichever suits your fancy. Hope this helps... it did for me.