Although not essential reading, the links contained here may be of considerable help to you and are recommended reading.
Character Portraits (http://www.escapefromunderdark.com/forums/showthread.php?t=23492) - Here you can links to various portrait packs, and players can also put up the portraits of their character.
Brief Guide to Politics in EFU:A (http://www.escapefromunderdark.com/forums/showthread.php?t=29754) - This player post/thread contains some advice about how to achieve political success with your characters. Although somewhat outdated, it may be worth reviewing.
Clucky's Allmighty Override Guide (http://www.escapefromunderdark.com/forums/showthread.php?t=23789) - A thread with links to various overrides you may be interested in. Make sure to make back-ups, sometimes overrides can cause bugs.
Chat Logging (http://www.escapefromunderdark.com/forums/showthread.php?t=41079) - Thread that explains how to chat log
1.69 Override Performance Improver (http://www.escapefromunderdark.com/forums/showthread.php?t=38619) - this thread links to an override which will improve performance for some newer tilesets that EFU:A makes use of. Definitely recommended!
EFU:A Domains (http://www.escapefromunderdark.com/forums/showthread.php?t=32173) - A thread with nicely formated info for EFU:A custom domains
EFU:A DM Factions (http://www.escapefromunderdark.com/forums/showthread.php?t=28368) - a post from Secutor about factions.
[url=http://www.escapefromunderdark.com/forums/showthread.php?t=554]Character Name Generators (http://www.escapefromunderdark.com/forums/showthread.php?t=28368) - list of character name generators
Creating Character Portraits (http://www.escapefromunderdark.com/forums/showthread.php?t=23987) - Info on creating your own character portraits.
Why Characters Die: The True Story (http://www.escapefromunderdark.com/forums/showthread.php?t=12276) - post from The Beggar about his observations about character death
How to Rock my Socks Off (http://www.escapefromunderdark.com/forums/showthread.php?t=19553) - definitely recommended reading, this tells you a little about what is fun for me to DM for
Updated
Sex, Relationships & Roleplay (http://www.escapefromunderdark.com/forums/showthread.php?t=54311) - Hopefully this will clarify our policy regarding these subjects!
A Few Old Tips (http://www.escapefromunderdark.com/forums/showthread.php?t=52555) - Helpful for higher level PCs
Thoughts About DM'ing (http://www.escapefromunderdark.com/forums/showthread.php?t=51252) - Perspective from the other side of the fence
Races and Reactions (http://www.escapefromunderdark.com/forums/showthread.php?t=51174) - Helpful thread about how different races are perceived in EfU