• A Practical Guide to Linux Commands, Editors, and Shell Programming  - by Mark Sobell
• Run Your Own Web Server Using Linux & Apache - by By Stuart Langridge & Tony Steidler-Dennison
• Introduction to Linux - A Hands on Guide - by Machtelt Garrels (an online Book)  - Read chapters 2 and 3
• Setup VMWare
• Introduction to Fedora 4
• Release notes: comparing Fedora 4 and 6
• DOS to Linux Commands
• Linux Commands
• Alphabetical Directory of Linux Commands  
• Linux Commands for Beginning Server Administrators
• Some advanced Linux commands
• Linux LiveCD
• The Linux Command Line Interface (by Cavaiani)

General Articlas about Linux

• Unix Still Going Strong