[gnu.org #701121] Duplicate content?

[Jason Self via RT]

Josh wrote:
> Hi,
> 
> I search the Emacs manual using Google's "site:" operator. For example:
> 
> http://www.google.com/search?q=site:www.gnu.org/software/emacs+EXAMPLE
> 
> I've been noticing that pages in the manual don't always show up in the 
> search results when I use this method. For example, when I search the 
> manual for "refill", the Refill page doesn't show up:
> 
> http://www.google.com/search?q=site:www.gnu.org/software/emacs+refill
> 
> I think this may be due to the fact that the Emacs manual is shown via 
> multiple distinct URLs, which Google perceives as duplicate content:
> 
> http://www.gnu.org/software/emacs/manual/html_node/emacs/
> http://www.gnu.org/software/libtool/manual/emacs/
> 
> Here's an article that addresses the problem of duplicate content:
> 
> http://www.google.com/support/webmasters/bin/answer.py?answer=66359
> 
> Thanks for maintaining gnu.org. It's one of the most useful sites on the 
> web.
> 
> Take care,
> Josh

Hello libtool maintainers, just forwarding the above feedback to you for
your consideration. Perhaps one option might be linking to the GNU Emacs
manual instead of maintaining an independent copy?