What is duplicate content and how can I avoid being penalized for it on my site?
My website is for U.S. military members, helping them enjoy their base more by providing places to go on/off base, and information to learn about the base. It is capable of supporting every military base world-wide.
Each base has it's own landing page. From here users can see content like: place pages, "blog" posts, etc... Here's where my question comes in.
Places can be viewed by bases within a given distance of that place, so some places will appear on multiple base pages.
Blog posts are tiered. They can be global (appear on all bases), regional (appear in all U.S. bases, or overseas), sub-regional (appear in Japan, or Germany, etc...), or specifically for one base.
How do I avoid duplicate content penalties for places/posts that span more than one base?