The Virtual Encyclopedia of Sex © 2009 by Artmunk VOF, the Netherlands and Playgirl.com. Published by Playgirl.com, US. Developed by Artmunk VOF, the Netherlands and Playgirl.com. The Virtual Encyclopedia of Sex design and mark are registered trademarks of Artmunk VOF and Playgirl.com. All other brands, product names and logos are trademarks or registered trademarks of their respective owners. Use of this product is subject to acceptance of a license agreement. The terms of this license agreement can be found in the product's installation directory.