How google/search engine considers a post in Wordpress with Private/public tag? Do they crawl private published post?
In Some cases they do index it..I have read people complaining about it. It can also depend on your theme, if you use seo optimised theme, there must be an option where you can add noindex for the post. If you use free theme try, robots meta tag plugin, to control it.
I am not sure what you mean by a tag. If you are referring to posts requiring a user account to view the post, then no, Google will not be able to crawl it. There is an exception to that rule. News agencies use it for their subscription articles, and allow Google to crawl the articles for search purposes. Google does not provide cached results or any information other than a snippet for the article that is relative to your search terms.
Thanks Kimi and dodger. Actually there is not any tag as such. I asked about when a post is published private do yahoo, google or msn indexes page or not.