tedster - 9:56 pm on Aug 10, 2012 (gmt 0)
There is a new article from Google about using valid DMCA complaints as a ranking factor. See [webmasterworld.com...]
However, in the past at least, I found it took more proactive steps to ensure a site got the deserved "credit" for their own content. Things like authorship mark-up, pubsubhubbub with fat pings to Google, and delayed RSS feeds were very useful for me.