There is a new opposition group to the US Orphan Works Act 2008 at http://www.owoh.org/

It's not clear who is behind this coalition (probably Illustrators Partnership + Advertising Photographers of America) but the listed additional opponents of OWA so far are

• The Artists Rights Society of New York (representing 40,000 fine artists worldwide)
• The Professional Women Photographers, Inc.
• The Editorial Photographers of America
• National Press Photographers Association
• The Association of American Editorial Cartoonists
• The Society of Photographers and Artists Representatives
• The Artists Foundation
• The Craft and Hobby Association (representing the $31 billion craft industry)
• SURTEX/George Little Management
• Art of Licensing Listserve
• Society of Decorative Painters
• Southeastern Pastel Society
• Society of Digital Artists
• National Association of Independent Artists
• Wellington Art Society
• Palm Beach County Art Society
• Canadian Association of Photographers and Illustrators in Communication
• Rassemblement des Artistes en Arts Visuels
• Association de Illustrateurs et Illustratrices du Quebec
• Creators’ Rights Alliance