by Kuba Mikita on WordPress.org
Mark your articles as a "Must Read" and display them in a widget or via shortcode or function

Widget with the list
This plugin allows you to mark any of your articles as a “Must Read” to display them anywhere in a pretty convenient way.
There are three possible ways to display the list.
Widget
Just go to the Widgets screen and find the “Must Read!” widget. You can place it in any sidebar and adjust the settings.
Shortcode
[mustread number=5 image=above_title date=1 author=1 excerpt=1]
All supported params and their values are available in the FAQ section.
PHP function
mustread( array(
'posts_number' => 5, // integer
'display_image' => false, // false|above_title|below_title
'display_date' => false, // true|false
'display_author' => false, // true|false
'display_excerpt' => false, // true|false
), true );
The last parameter controls the output of the function. If you provide a false there, the function will return list HTML.