Great question — answering as the UphillTech team:
Spin off my content into a separate domain, which in turn is linked to each of my locations' domains. Not sure what the repercussions of this would be. If it is translated into the local language, then it is all fine and even great. Use hreflang to connect such translated content with the original. If it is exactly the same content, then don't do it. It won't work. Syndicate the relevant portions of the content across each location. This seems like a dangerous way to get slammed for duplicate content. On a small scale, you probably would not be penalized, but your main site would likely rank over your smaller/newer site. If a site offers the same content as another, the one with the higher...
Full answer by Jérôme Verstrynge: https://webmasters.stackexchange.com/a/84942 (CC BY-SA 3.0).
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