I've decided to search the net for some resources that will help you be a Linux Guru in no time:

• Linux Shortcuts
  
• How to look like a Linux Guru
• Bash for Beginners
• Beginner Linux Tutorials
  
• Other Links to Beginner Linux stuff
  

And let's not forget to keep a copy of some handy Linux cheat sheets:

• Linux Commands
• The One Page Linux Manual
  
• The VIM graphical cheat sheet
  

 You may also be interested in Ubuntu desktop lessons.

Here is a nice Ubuntu cheat sheet to print and keep handy beside your computer.  I printed mine and laminated it.  How sad is that?  These types of cheat sheets come in really handy, especially when your internet goes down and you forget the command to mount your USB hard drive or something.

Upon reading the Ubuntu cheat sheet, I thought I'd search for other Linux command cheat sheets.  Here is a small list:

•  The One Page Linux Manual
• UNIX/Linux Reference Card
• The Linux Document Project Quick Reference Card
• UNIX/Linux Command Reference