I have found some good reading on the forums about why not to duplicate content among blogs and that there is not an "automatic" way to do that. I think I get most of this and appreciate the input and links to google's webmaster's page regarding this.
But the fact remains that sometimes I publish a post on my blog that is designated "search engines blocked" because it is mainly for family and friends (tho' is not technically fully private), and I later realize it would be appropriate for a public blog post. I have not technically started promoting or writing to my public blog other than some samples, but thought I should clear this up in my mind before I get into full swing of writing blog posts for that one.
Does the advice hold true not to duplicate content when it involves a "search engines blocked" blog as well as when both blogs are public? It would probably be something like one in twenty posts I'd want to duplicate, or less. I write about home education, so sometimes something that is "personal" is something that it turns out I would want to share with other homeschooling parents - but I don't really necessarily want my entire personal blog easily searched for. However, an important point here is that often these posts "come about" because I am writing in that relaxed way to family and friends on my "search engines blocked" blog, and I don't know until after I've hit "publish" and looked at it a few days to realize "that's one others might enjoy, and it doesn't reveal too much personal."
Maybe when that occurs, I just need to delete from the private blog and re-create on the public one? I presume I can "move" text by copy/paste, and that I would have to re-insert photos?
That is fairly intensive, so I admit to coming here looking for a more "automagic" solution, until I learned from the good forum volunteers why there could be a downside. See? I read the sticky posts! (If this has been addressed with the more private blog, it did not turn up in my forum searches about duplicate blog posts)
Thanks for considering - there is a part of this that has to do with how creativity occurs that is not strictly technical, and I'm hoping someone can help me with that in mind!