munkiestyle - 6:42 pm on Aug 5, 2010 (gmt 0)
It certainly doesn't hurt to threaten them with a DMCA. Tell them you either want the pages removed entirely or the content of the pages completley rewritten. Tell them you'll give them x number of days to do it or you'll pull out the big guns. Telephone the hosting company, I've done that in the past and they talked me through their procedure for removal - in the end that guy removed my stuff before I needed to go that far.
As regards to Google giving priority to scraper and mashup sites recently, I agree completley. In fact in an attempt to PROVE to Google I'm the first to write an article, every time I write an article I put a small link to the new page from several of my important well ranked pages. I then give it a few days of sitting at the top in Google for those search terms, then I put a nice big prominent link on my homepage for all my visitors. Then once the scrapers pick up the story I've had a chance to get to the top in the SERPS. It doesn't always stay there, but it's usually in the top 3 results when the dust settles. Some of the sites which pick up the stories are good quality big sites too so it seems to kinda work.
Of course if Google would get their act together and start growing some morals I wouldn't have to waste my time doing dumb stuff like that!