Planet13 - 5:32 pm on Dec 10, 2011 (gmt 0)
what about scrapers that are providing links back to the content? DMCA request for that too? or let that one go?
I recently filed DMCA requests against 3 sites that had paragraphs of my content on them yet, were all linking to the same widgets.html page on my site.
One was a yahoo answers page, one was an amazon.com page, the other was an ecommerce site in the UK (I am in the USA).
Whether related or not, that page increased in rankings and traffic within a week or so of the DMCA's being processed.
Of course, I have NO insight as to whether that was the cause for the rankings and traffic increase or not.
I hope this helps. I would definitely see if you are getting TRAFFIC from those pages that scraped your content and link back to you. If you get significant traffic, I MIGHT think about leaving them be...