tomoya

This plugin widget is very simple. 
The list of the entry can be displayed in the sidebar by specifying a favorite category when this plug-in is used.

Limited Category Lists Widget

Limited Category Lists Widget is a wordPress widget, lists the limited category as shown in the name.

marushu

<a href="https://github.com/marushu/sequential_posts_numbering" rel="nofollow ugc">This plugin published on GitHub.</a>
This plugin will serialize your posts. Since this plugin simply outputs numbers only, it’s up to you to incorporate it into html or styling with CSS. 🙂 
It demonstrates its power with archives and single pages in the loop. 😛 
Now added ?order?, ?raw? options. See Parameters.
<h3>Contact</h3>
Twitter: @marushu 
email: shuhei.nishimura[at]gmail.com

Sequential posts numbering

This plugin will serialize your posts. Since this plugin simply outputs numbers only, it's up to you to incorporate it into html or styling with  …

Limited Category Lists Widget vs Sequential posts numbering