MB Creation

<p>Popup a message on your WordPress blog is now very easy.</p>
<p>If you want to promote your brand new newsletter functionnality, display advertising on your homepage or get more Facebook fans you can use Simple Popup Manager to popup a message all over your content in a lovely “lightbox effect”. You can customize your message using a WP editor and of course specify the width and the height of the message box. You can limit the display of the message on either session or days basis.</p>
<ul>
<li>Choose wether the popup will be displayed only on homepage or on every page</li>
<li>Set size, width and threshold of the popup (you can disable mobile)</li>
<li>Customize background-color and opacity</li>
<li>Popup content is just a normal WordPress editor (you can use shortcode)</li>
</ul>


Simple Popup Manager

Simple Popup Manager allows you to easily popup and display a simple message box on your WordPress front page.

WEN Solutions

<p>Notice bar is simple but powerful plugin to create and display custom Notice bars in WordPress websites. It helps website admins to effectively convey notices, information & messages to their visitors swiftly. With user friendly interface, tons of options to toggle and multiple notice types, Notice Bar is undoubtedly one of  best notice bar plugin for WordPress websites.</p>
<h4>Some Useful Links</h4>
<ul>
<li>Plugin : <a href="http://wensolutions.com/plugins/notice-bar/" rel="nofollow ugc">Homepage</a></li>
<li><a href="https://wensolutions.com/contact/" rel="nofollow ugc">Support Forum</a></li>
</ul>


Notice Bar

Made it useless for me. But the message works, so 3 stars.

Can't add link

A easy plugin to show multiple notice bar in WordPress sites.

Simple Popup Manager vs Notice Bar