Thomas Maier

WPAds is a free plugin for showing and managing ads on your WordPress site. It works very similarly to other ad servers, but because of its limited functionality, it is much easier to use.
<blockquote>
Please read before updating
This is a fixed version of WPAds which was not hosted on wordpress.org before. 
 I updated this plugin to work for existing users with a newer version of WordPress, but would suggest new users to use <a href="https://wordpress.org/plugins/advanced-ads/" rel="ugc">a better ad management plugin</a>. 
 Please, don’t update if you don’t use at least WordPress 4.7.
</blockquote>
The main concepts of WPAds are zones and banners. After creating zones you can insert these ad positions in your template or in your posts, e.g. as positions for ads in header, sidebar or content. Than create some banners, paste the ad code you want to display and assign them to your ad zones. WPAds will serve your ads randomly to those positions. The rotation is based on a variable weight of your ads.
WPAds can show different ad formats (HTML, JS; PHP, Image ads) and support ad networks like Google AdSense, Yahoo Publishers Network, Amazon or Chikita.
Features:
<ul>
<li>shortcodes for injection into posts and templates</li>
<li>unlimited ads</li>
<li>unlimited zones</li>
<li>ad rotation</li>
<li>ad weight</li>
<li>impression counter</li>
<li>max. views per banner</li>
</ul>

WPAds

WPAds is a simple and light weight ad manager for WordPress.

digitalemphasis

The main goal of this plugin is to avoid too much time without recent posts. 
‘Post Rotation’ takes the oldest post that matches with your criteria and automatically converts it in the most recent one, as just published.
<h4>Features</h4>
<ul>
<li>Easy configuration.</li>
<li>You can specify the rotation interval or the allowed time without new posts.</li>
<li>Enforce punctuality only if you want it.</li>
<li>You can also choose if you want to alter the ‘last_modified’ value.</li>
<li>You can exclude from rotation posts without featured image.</li>
<li>You can activate a filter and select which categories will be affected and which ones will be ignored by the plugin.</li>
<li>By default, the plugin works with the conventional ‘post’ type… but you can even rotate custom post types.</li>
<li>Clean uninstall option: If this option is enabled, the plugin will leave absolutely no traces when uninstalling.</li>
<li>Visit <a href="https://digitalemphasis.com" rel="nofollow ugc">digitalemphasis.com</a> for more info.</li>
</ul>

Post Rotation

Set the rotation interval or the allowed time without new posts... and automatically an older post becomes the latest one!

WPAds vs Post Rotation