I just quickly browsed through that site and it promotes Jihad against non-Muslims, suicide bombings and other forms of sacrifices to the "cause". As sickening as it is that such sites exists, spewing hatred and loathing towards fellow man simply because they were raised differently, I am saddened to say that fanaticism like this exists in every circle of every faith. You've all heard of the Westboro Baptist Church
[en.wikipedia.org] and there are Jewish websites that attack anything they consider against their faith and counter any criticism with antisemitism claims. The main question is, how many take this seriously. The Westboro Church is ridiculed for their claims but what is the general consent for this Islamic site? How many read it, considering this to be holy truth?
The biggest irony of them all is that Christianity, Judaism and Islam all focus on the same root faith of believing in the one true god. These three faiths are based on the same core roots and we follow more or less the same book. The Qur'an, The old Testament and the Hebrew Bible are more or less the same book. Wouldn't it be nice if people could look at the things we have in common rather then the things that separate us?
Final point I wish to say. If god exists and he is as just as we believe him to be then those who carry these views... Those who spread pain and misery... Those who teach to hate rather then to love will find themselves unpleasantly surprised on their judgment day.