"...where the Spirit of the Lord is, there is liberty."
-2 Corinthians 3:17 (NASB)
"Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence."
I don't know that I have that many Linux/Ubuntu enthusiasts checking this blog, but I really believe that the Ubuntu Pocket Guide is nonetheless worth mentioning. Excellent resource. Check it out. It's available as a PDF or in Google Books.