Another evolution that has been suggested is placing all the content into a single platform “Master” & make all of the other platforms “Servants” ; i.e. the servants would pick up & link organically back to the original posted.

Have spent more time than is healthy trawling through Google Webmaster & some other SEO forums, only to receive wildly conflicting answers, you guys get the casting vote.

One area where this is particularly true is when the content at more than one web address, or URL, appears to be substantially similar at each of the locations it is seen by the search engines.

Some duplication of content may mean that pages are filtered at the time of serving of results by search engines, and there is no guarantee as to which version of a page will show in results and which versions won’t. Duplication of content may also mean that some sites and some pages aren’t indexed by search engines at all, or that a search engine crawling program will stop indexing all of the pages of a site because it finds too many copies of the same pages under different URLs.

When content and users are put at the top of the priority list, SEO (and many other pieces) tend to fall into place. The goal of the search engines is to provide users with the most relevant content available; the search engines are trying to act like human users. If we make users happy, we will in turn make SEs happy, especially as search evolves in accordance with users’ changing search habits.