Some helpful and interesting links here.
I thought you may want to also add these -
This one's got quite a few links you may want -
This ones got a few nutters but worth a look -
I also have a list of Islamic terrorist sites most of which are in Arabic. Let me know if you want these too. They contain some pretty miserable and gruesome stuff and should be viewed with caution - you are likely to flag up on MI5/MI6's databases if you have a look (care of GCHQ and the US's NSA). These Islamic terror sites need to be kept under the microscope though.