If you'd rather let someone else do the hacking for you, by the way, check out http://www.help-israel-win.org/, where they have an application you can download and install that uses group computer technology (sort of like SETI, Search for Extra-Terrestrial Intelligence, http://www.seti.org). Their application attacks anti-Israel Web sites; I don't know if it's legal, but it is easy.

No, its not legal, and as of this writing, its down.

Digital World: How to beat anti-Israel hackers at their own game | Internet and Technology | Jerusalem Post