islam-the religion of peace or violence  

Brother,u r not right because muslims are not directly involved but it is the media,which points all terror activities in the name of Islam.Jihad is the mostly misleading term in Islam.Actually jihad is not holly war,instead jihad means"striving against one's own will".The Arabic term for Holly war is Qithal.But I agrees with you in some sense as the problems are caused by muslims who are not aware of the fundamentals of Islam.
Hitler Killed several Jews and he was a Christian,but media never blamed Christianity for his activities.Then why the media Blames Islam for the mischievous activities done by usama Bin Ladein or others,think Yourself and if we wanna study about Islam we wanna study Quran and Hadiths,as these are the authentic sources of Islam.

Ref your comment: Hitler killed several Jews and he was a Christian

If you choose to investigate Hitler's statements on religion, you will find numerous inconsistencies in what he had to say, but there is no way that he was ever an orthodox Christian (and please note - I am not a Christian either, so this is not an attempt to defend Christianity).

There are many conflicting views on what he was, but nobody yet has come up with a clear definition.

The eradication of the Jews in Europe was based upon a brutal, radical, extreme nationalist political philosophy (based essentially upon an absurdist attempt to achieve racial purity), not upon any religious commitment, as can be seen in his attempt to eradicate also Europe's Roma population.