Many bloggers steer clear of any republishing strategy because getting a Google penalty terrifies them.
But in reality, republishing content with the full knowledge of its original author is not an activity Google is remotely concerned about punishing.
As Google acknowledges on its help page dedicated to duplicate content, “Duplicate content generally refers to substantive blocks of content within or across domains that either completely match other content or are appreciably similar. Mostly, this is not deceptive in origin.”
“If you syndicate your content on other sites,” Google goes on to say, “Google will always show the version we think is the most appropriate for users in each given search, which may or may not be the version you prefer. However, it is helpful that each site on which your content is syndicated includes a link back to your original article.”
So Google might show the syndicated content page in its results rather than your original piece. But for most of us, getting that content to the foreground of a Google search would be a big win in the first place. And even if that does happen, there’s still no penalty dished out from Google against your domain.