One article across multiple sites - Google considerations?

[Simsi]

I have an "advise" article that applies to visitors across a network of sites I manage. I am wondering how to best serve this bearing in mind the issues surrounding duplicate content.

The option that strikes me as most logical would be to put it on one site and use a borderless iframe to call it on the other sites. Also has the advantage of only having to update the article in one location.

The second option is to simply link to it, but I worry that Google would frown a little on this internal network linking.

Any other ideas or is the first option the best way, and is nofollow on iframe code something to consider?

Cheers

Ian

[HuskyPup]

FWIW I use a .info site for our companies legal, privacy and cookies pages with a splash index page with a brief company intro etc and in the LHS navigation a link to each regional/national site.

This way visitors can either use the back button to return to where they were or go to another company country site direct.

As you rightly say, one update does for every site and Google's been well-aware of what I do for years, heck the site even ranks for some phrases!