Pop-under popup is a plugin to load window behind the browser window of your website. or second smaller browser window upon clicking your website. This is a best plugin to show ad that is automatically displayed in a second smaller browser window upon clicking your website. This window will open, if users click somewhere on your web site.
[GOPIPLUS-ADS=AD1]
Video tutorial
Plugin official webpage
http://www.gopiplus.com/work/2014/05/13/popunder-popup-wordpress-plugin/
Download link
http://www.gopiplus.com/work/2014/05/13/popunder-popup-wordpress-plugin-download-link/