Gargron

<p>Displays authors of a collaboration post in place where only one is shown by default. Uses custom fields (key=<code>coauthor</code>;value=user’s username; one per user). Note: If it doesn’t automatically display the co-authors you must manually add  <code>if(function_exists(wt_the_coauthors_link)): wt_the_coauthors_link(); endif;</code> into your theme (in PHP <code><?php ?></code> brackets, of course).</p>


WT Co-authors

Using WordPress Custom Fields, and without editing any template files, lets you credit all authors on collaboration posts.

gudlyf

<p>This plugin will add a new button to the post and page editing TinyMCE toolbar (though only in visual/rich editing mode). Highlight text and click the main button and it will make that text a tag link to your blog, or you can click the submenu to choose from your site’s category links or links to authors (only those who are currently set as “contributor” or higher).</p>


Tag, Category & Author Link Button

Adds a new button to the post and page editing TinyMCE toolbar (though only in visual/rich editing mode) for creating tag, category and author links t …

WT Co-authors vs Tag, Category & Author Link Button