Letícia Moreira

Darven – Who Published ensures editorial integrity by saving and displaying the original author who published a WordPress post or page. Even if a post is edited later by other users, the plugin preserves the original publisher information and displays it in the admin interface.
Features include:
<ol>
<li>A new column “Who Published” in post and page listings.</li>
<li>A visual badge system to highlight confirmed and guessed authors.</li>
<li>A metabox in the post editor showing the original author.</li>
<li>Admin filtering by original publisher.</li>
<li>REST API compatibility.</li>
<li>Translations included: pt_BR, pt_PT, es_ES.</li>
</ol>

Darven – Who Published

Preserves and displays the original user who published a post, even after edits or updates.

Nimrod Flores

GooglePlus Multi-Authorship provides a straightforward solution to properly add Google+ Authorship markup to the head of each post and page on a multi-authored site.
It follows the recommended use of the rel=”author” link tag to point to a Google+ profile as described in <a href="http://googlewebmastercentral.blogspot.com/2013/08/relauthor-frequently-asked-advanced.html" rel="nofollow ugc">this FAQ</a> on Google’s official webmaster blog.
<ul>
<li>It adds only the rel=”publisher” link tag on the home page, front page and archive pages</li>
<li>It adds both the rel=”author” and rel=”publisher” on single posts and pages.</li>
<li>The appropriate author’s Google+ profile is used for each single post and page.</li>
<li>You can set a default Google+ profile to be used as a fallback if there’s no Google+ profile specified for an author in his WP user profile settings.</li>
</ul>
For questions and support, please post them at the <a href="http://nimrodflores.com/googleplus-multi-authorship" rel="nofollow ugc">plugin page</a>. I can’t provide quick help if you post your questions in the forum as I am not always in the forums.

GooglePlus Multi-Authorship

GPMA provides a straightforward solution to properly add Google+ Authorship markup to the head of each post and page on a multi-authored site.

Darven – Who Published vs GooglePlus Multi-Authorship