Tweaking.com domain in not on the black list of my company, but Facebook is.
As many other web sites around the world, if you put the facebook script at the end of the html code, in our company everyone can visit tweaking.com web site.
In today situation, we can see only the black banner on top of your website.
Just to let you know the situation. If you google around, you will see that many companies are blocking social networks like facebook and what I suggested is a common solution applied by web designers, in order to let users with blocked social, access their web sites.