The hacking group Teamr00t has also started to attack Israel websites in protest of attacks taking place on Gaza. So far they have defaced more than 20 websites.
The list of hacked sites includes
http://www.cheap-flights.co.il/
http://www.hotelz.co.il/
http://www.visa-israel.com/
http://iphonews.co.il/
The rest of the site and the hackers message as well as the mirror can be found here:
http://pastebin.com/yGEySUG4
http://pastebin.com/uTfpcZ6B