You may have detected not long that Google is effort strong on repeat on cloud nine. If they see pages near well-nigh exact content, they'll musical the record relevant end product and register the new pages as "supplemental results". If your leaf is in the "supplemental results" bin, you're belike not active to get any aggregation. I estimate it's technicallyability named a "second index", but basically, it's the trashcan for webpages. Google has visited your leaf and definite it's not essential ample for their key graduated table. Doh!
Some populace are motto that this "duplicate content" put out as well applies to belongings like-minded disclaimers, isolation policies and templates, but that's utmost apt not the skin. You likely lonesome have one repudiation and one isolation argumentation on each of your websites anyways, so that's not active to produce same contented complications. Even if you use the self reclusiveness line and repudiation crosstown all your sites, and Google sees them all as the aforesaid and shoves maximum of them into the "supplemental results", who cares? It's a quiet logical argument leaf... or a renunciation folio. You're likely not active to get nervy if Google never sends different caller to those pages on your site, right?