The ad in question was directed to "Persons Outside the United States" and says the following:
This settlement may affect you because it covers U.S. copyright interests in books published outside the United States. If you hold such an interest in a book or other material in a book, this settlement could bind you unless you timely opt out...
Authors and publishers filed a class action lawsuit, claiming Google violated the copyrights of authors, publishers and other copyright holders ("Rightsholders") by scanning in-copyright Books and Inserts, and displaying excerpts, without permission. Google denies the claims. The parties have agreed to a settlement.
The ad also covers: What Does the Settlement Provides?, Who is Included?, What Material is Covered? (ie. in-copyright written works such as novels, textbooks, dissertations and other writings that were published or distributed in hard copy format on or before 5 January 2009) and What Should I Do? The closing date for objections or commentary on the settlement is 5 May 2009.
For complete information, including the Full Notice visit: http://www.googlebooksettlement.com. You can also call: 1 800 669 201 or write to: Google Book Search Settlement Administrator, c/o Rust Consulting, PO Box 9364, Minneapolis, MN 55440-9364 USA.