kengher

Broadcast simple, important alerts across your multisite network. Also great for single sites.
Features of Site Alert: 
* Display alert(s) in the Homepage with option to show in all pages of a site. 
* Native WordPress WYSIWYG message creation box for simplicity with media support. 
* Choice of hardcoded at the different parts of the page, or make it a pop-up modal. 
* Indicate different priority levels (colors) and icons. 
* Set a date range to publish/unpublish the alert.
Features as a Network Admin 
* Show alert across all all sites in your multisite network. 
* Exclude alert(s) from certain sites. 
* Site Groups manager to provide easier bulk exclusions.

Super Simple Site Alert

Broadcast simple, important alerts across your multisite network. Also great for single sites.

Theme Junkie

This plugin adds a pack of shortcodes to enhance your site. You can easily add buttons, alerts, columns and more without coding knowledge!
<h4>Shortcodes Includes</h4>
<ul>
<li>Alert</li>
<li>Button</li>
<li>Column</li>
<li>Tab</li>
<li>Toggle</li>
<li>Dropcap</li>
<li>Hightlights</li>
<li>More to come</li>
</ul>
<a href="http://demo.theme-junkie.com/daily/shortcodes/" rel="nofollow ugc">Check out the demo</a>.
<h4>Plugin Info</h4>
<ul>
<li>Developed by <a href="http://www.theme-junkie.com/?utm_source=wporg&utm_medium=text_link&utm_campaign=Site%20Promotion" rel="nofollow ugc">Theme Junkie</a></li>
<li>Check out the <a href="https://github.com/themejunkie/theme-junkie-shortcodes" rel="nofollow ugc">Github</a> repo to contribute.</li>
</ul>

TJ Shortcodes

A small pack of shortcodes to enhance your site functionality. You can easily add buttons, alerts, columns and more.

Super Simple Site Alert vs TJ Shortcodes