Google recently announced a breakthrough for webmasters regarding the use of Canonical Http Headers. While this may not mean much to most, this is going to quell duplicity ( the woes of duplicate content) in large websites with one simple meta command instead of having to resort to drastic measures such as using 301 redirects to minimize or manage content duplication across categories, tags or, content types or folders.
With this simple command, you can indicate the preferred URL to Google and minimize the suppression or devaluation of multiple pages fighting in the index for the same topic. You can read more at Google Webmaster Central for the official post. You can read about their previous update in 2009 regarding canonical URL support here.Naturally, we have already considered how to integrate this into SEO Ultimate and WP Ultimate Theme and intend to weave this feature into the code after we perform some testing.