This is list of some Arab Linux User Groups:
Linux Arab Comunity:
http://www.linuxac.org
They have an IRC channel on freenode: irc.freenode.net : #linuxac
Lebanese Linux User Group:
www.linux.com.lb
also on freenode: #linuxlb
Lebanese GNU/Linux User Group:
http://www.leglug.org
also on freenode: #leglug
Egyptian Linux Users Group:
http://www.eglug.org
freenode channel: #eglug