You can report for duplicate content or for copyright infringement to Google by sending a snail mail or fax (and not by e-mail) at the address given below:
Google, Inc.
Attn: Google Legal Support, DMCA Complaints
1600 Amphitheatre Parkway
Mountain View, CA 94043
OR fax to:
(650) 963-3255, Attn: Google Legal Support, DMCA Complaints
Complete Information regarding to copyright infringement to Google can be found at-
http://www.google.com/dmca.html