There's already a rel=canonical element supported by the major search engines: http://ysearchblog.com/2009/02/12/fighting-duplication-adding-more-arrows-to-you

There's already a rel=canonical element supported by the major search engines: http://ysearchblog.com/2009/02/12/fighting-duplication-adding-more-arrows-to-your-quiver/ http://ysearchblog.com/2009/02/12/fighting-duplication-addin...