flexostudio

Choose from which category and how many posts you want to show, as is shown 
name and picture of the contents of this publication.
<h3>How to use</h3>
<ol>
<li>From the Administration -> settings go to post manager options enter data, generate code copy and paste the desired place in post</li>
<li>FlexoPostManager::category_post($_args); where $ _args is an array of type 
$args = array( 
 ‘category’ => ‘pictures’, 
 ‘count’ => 5, 
 ‘h_num’ => 3, 
 ‘master_class’ => ‘post-preview’, 
 ‘return’ => false, 
 ‘title_first’ => true, 
 ‘template_func’ => ‘format_post_as_picture’, 
 ‘order_by_postmeta’ => array( 
 ‘key’ => ‘fb_score’, 
 ‘order’ => ‘DESC’ 
 ), 
); 
you can put this wherever you want in header, in sidebar …..</li>
</ol>

flexo-posts-manager

shows your chosen number of publications in the selected category

dcannon1

Small, lightweight (under 7k) widget that shows posts from the same category as the current post. Several options for customization along with numerous ordering criteria for posts. Displayed only on single post pages. Based on Related Links by Category by Andrew Stephens
Options
<ul>
<li>Title – Set the title of the widget (or leave blank)</li>
<li>Number of Posts to Show – Set how many posts are listed in the widget</li>
<li>Order By – Choose how the related posts will be ordered (including random posts)</li>
<li>Show Category Names – Toggle whether category names are displayed above groups of posts</li>
<li>Link Cat Name to Archive – If category names are being shown, choose to have them link to the category archive page for that category</li>
<li>List Posts Multiple Times? – If a post is classified under multiple categories use this toggle to determine if it will be shown under each category, or only under the first category it shares with the current post. This should be set to no if you are not displaying the category names</li>
</ul>

flexo-posts-manager vs Related Posts by Category Widget