Originally Posted by joncase

One of my clients has the same problem. He has disappeared from page one of G SERPs for his key search term. On doing some searching, I found that a large B2B site has copied most of his home page copy and placed it in a number of their business listings. These are bogus listings for businesses that do not exist as advertised. At first I made a complaint to G through WebmasterTools about spam/duplicate content. In about a week, my clients site was back to its page one ranking. Within the next week, it disappeared again. My client has now filed a DMCA complaint with G. What we can't understand is why G, upon receipt of a complaint, does seem to look at cached versions of the text on both sites to find who first published the content. They are not doing themselves any favors by presenting the duplicate content, which is useless to the visitor, ahead of ours, which targets the search term exactly.