Are you at a workplace or school? If so, those places generally ban imgur because it eats bandwidth, so that could be the problem. Also, imgur was hacked fairly recently and was spreading viruses, so a lot of antivirus software also blocked it. That's all fixed now, but you should check to make sure your antivirus (if you have one) allows that site.Hey, just wanted to let you know, but all your image links are broken for me.
I would recommend changing the "imgur.com" part of the link to "filmot.org", which usually works, but that's been down recently, so not very useful now.