Philipp15b

This plugin allows you to add your code/text to the headers and footers on all the blogs in the blog network and in the backend of all blogs too.
In addition, it is possible to replace the footer bar text in the backend completely.
You can access the settings under Network Admin -> Settings.

Sitewide (Admin) Header/Footer

Change the header/footer of the front- and backend of WordPress Multisite

Ron Rennick

Andrea Rennick

Adds a featured post management page for site admins who can input a sitewide feed address, then select posts via a checkbox. Also includes a widget to disply posts on the main (or any) blog.
We recommend using the <a href="https://wordpress.org/extend/plugins/wordpress-mu-sitewide-tags/" rel="ugc">Sitewide tags plugin</a> in WPMU, then placing the feed address from the tags blog in the admin menu. Otherwise, any blog feed can be used.
A widget is included. You can also code the output in your theme with <code><?php ra_featured_show($how_many, $read_more, $show_avatar); ?></code> where
<pre><code>$how_many = how many posts to show - default 1
$read_more = add read more link - default show link
$show_avatar = show author avatar - default show avatar
</code></pre>
Also includes a shortcode with parameters where values & defaults match what is above
<pre><code>[ra-featured howmany=1 readmore=1 showavatar=1]
</code></pre>
For questions & updates, please see this post: 
<a href="http://wpmututorials.com/plugins/featured-posts-plugin-and-widget/" rel="nofollow ugc">WPMU Tutorials</a>

Featured Posts

Featured posts plugin & widget for WordPress or WordPress MU.

Sitewide (Admin) Header/Footer vs Featured Posts