Plenty of webmasters are taking an aggressive approach to dealing with people who use ad blockers on their website. Some go as far as removing access to their site unless ad blockers are disabled. Ad Blocking Advisor for WordPress lets you take a gentler approach. It displays a notification bar to your visitors who are using an ad blocker, encouraging them to whitelist your site.
This plugin takes the classic approach of using a JavaScript file named ads.js to detect adblockers. When it is blocked, a banner is activated. You can change font color, size, and background color. It lets you disable cookies or change expiration date.
You have the option to allow your visitors to remove the banner at any time. This plugin is available as a free download.