Rogues

Lord Jerrec's Lair
Features guides on lockpicking, traps, and training. Also contains general information on Voln, herbs, critters, and verbs.
http://www.jerrec.com

The Underground
An organization dedicated to roleplaying pickpockets in Elanthia. Contains roleplaying tips and examples.
http://thievesden.www3.50megs.com/