Security / hack / opensource conferences

AusCERT2007 - http://conference.auscert.org.au/
BlackHat - http://www.blackhat.com/
CanSecWest - CanSecWest
DefCon - http://www.defcon.org/
EuSecWest - http://eusecwest.com/
FOSDEM,- http://www.fosdem.org/
HackCon - http://www.hackcon.org/
Hack.lu - http://hack.lu/
HITBSecConf - http://conference.hitb.org/
IT-Defense - http://www.it-defense.de/
MEITSEC - http://www.meitsec.ae/
0sec 2006 - http://0x736563.org/
PacSec - http://pacsec.jp/
PH-Neutral - http://ph-neutral.org/
IT Underground - http://www.itunderground.org/
IT-Defense - http://www.it-defense.de/
CanSecWest - http://www.cansecwest.com/
HNS - http://www.net-security.org/conferences.php
CCC http://www.ccc.de/congress/
H.O.P.E http://www.hope.net
Layerone http://www.layerone.info
Shmoocon http://www.shmoocon.org
Toorcon http://www.toorcon.org
YSTS http://www.ysts.org