DEF CON 6.0 Linkable Logos page.
Please link to either http://www.defcon.org/html/defcon-6-pre.html or http://www.defcon.org/
 
J-Dog's logo from EleteHackers.org 
 
Dr. Ozone's logo 
 
DEFCON VI
Dr. Ozone's smaller logo 
 
DEFCON VI