Simon

This plugin creates a full screen ad with an expiration date without cloaking. All you have to do is add a link, image and expiration and you can have a full screen ad with a cookie.
There are plugins out there that create separate full page ads or landing pages versus what Google sees. So the plugin would show the user one page while showing another page to a search engine. This can be called cloaking which is never really a good strategy to show ads or landing pages.
This plugin doesn’t create landing pages. This plugin creates full page ads to promote your product or service without cloaking.

Mega Ad

This plugin creates a full screen ad with an expiration date without cloaking.

Pippin Williamson

Brian Richards

A simple plugin that allows you to set an expiration date on posts. Once a post is expired, “Expired” will be prefixed to the post title.
You can show the expiration status of a post using the [expires] short code.
The [expires] short code accepts 5 optional parameters:
<ul>
<li>
expires_on – The text to be shown when a post has not yet expired. Default: <code>This item expires on: %s</code>
</li>
<li>
expired – The text to be shown when a post is expired. Default: <code>This item expired on: %s</code>
</li>
<li>
date_format – The format the expiration date should be displayed in
</li>
<li>
class – The class or classes given to the DIV element
</li>
<li>
id – The ID given to the DIV element
</li>
</ul>
The <code>%s</code> will be replaced with the expiration date.
Have you found a bug or have a suggestion or improvement you’d like to submit? This plugin is available on <a href="https://github.com/pippinsplugins/Simple-Post-Expiration" rel="nofollow ugc">Github</a> and pull requests are welcome!

Simple Post Expiration

A simple plugin that allows you to set an expiration date on posts. Once a post is expired, "Expired" will be prefixed to the post title.

Mega Ad vs Simple Post Expiration