This tag displays the Yahoo IM ID for the author of a post. The Yahoo IM field is set in the user's profile (Administration > Profile > Your Profile). This tag must be used within The Loop.
<?php the_author_yim(); ?>
This tag does not accept any parameters.
<p>Contact me on Yahoo Messenger: <?php the_author_yim(); ?></p>
the_author(), get_the_author(), get_the_author_id(), the_author_link(), get_the_author_link(), the_author_meta(), get_the_author_meta(), the_author_posts(), get_the_author_posts(), the_author_posts_link(), get_author_posts_url(), get_the_modified_author(), the_modified_author(), wp_dropdown_users(), wp_list_authors()