I have seen many discussions here about this problem. What I would like to know is IS IT A MUST TO REDIRECT SITE.COM TO WWW.SITE.COM? We have both versions accessible without problems for years. Today, suddenly, I find many of site.com pages (site.com/url.html)appear in the serps instead of www.site.com servion (www.site.com/url.html) which used to be there. And www.site.com/url.html pages show white on the toolbar. :( Is this a duplicate content penalty?
