How to contact blog owner – he has stolen content I want removed

Hello,

I am trying to find a way to contact a wordpress blog owner who has no contact information available on his blog. Whois searches show nothing for this. The blog in question is: https://darkstorm207.wordpress.com/

This blog has copied original content from my site and placed it on his blog. I am in the process of website cleanup due to the evil Google Panda and must insist that this blog owner remove the copied content. These scraper sites are killing me since Panda came out in April!

So, how do I go about trying to contact the owner of this wordpress blog?

Thanks you so much for any help you can give me on this.

Anthony