Google Adsense management feature. There are 4 main locations, where you can serve ads to the visitors. In between job listings, beneath the sidebar, under apply button in the job detail section and in the employer dashboard.

INSTALLATION:

1. Upload content of the “upload” folder to your project
2. Open _config/config.envs.php and add your plugin -> e.g. ‘plugins’ => array(‘Adsense’)

HOW TO USE:

1. Sign up with Google Adsense
2. Get the verification code, in cPanel file manager or via FTP open the job board header located in “_tpl/default/layout/1.5/sjs-header.tpl” and paste it before the closing </head> tag. Also include the same code into “_tpl/default/index.tpl” landing page template in the same place.

3. Wrap the Adsense Javascript code into {literal}<script>…</script>{/literal} Smarty special labels. Otherwise it may cause issues with the template.
4. Get your site reviewed. After approval you can insert the Adsense code in the Admin -> Adsense section.

Read official guide by Google.