Plugin that helps keeping content up-to-date

You might know the problem: When you start a new website you include all kinds of information. But sometimes things change (e.g. office hours, staff members) and you forget to update your website.

I am looking for a plugin that asks the creator of a pages every X months if the information is still up-to-date. And if the creator doesn’t react after a couple of days the admins should be asked. If the admin doesn’t react the pages should be taken offline.

At leat I am looking for a plugin that serves the same purpose: help the admins to keep content up to date.