This is a slightly dated but pretty good primer on how ISIS manages to pay the bills to keep the lights on:<p><a href="http:&#x2F;&#x2F;www.newsweek.com&#x2F;2014&#x2F;11&#x2F;14&#x2F;how-does-isis-fund-its-reign-terror-282607.html" rel="nofollow">http:&#x2F;&#x2F;www.newsweek.com&#x2F;2014&#x2F;11&#x2F;14&#x2F;how-does-isis-fund-its-re...</a>