The external link plugin for WordPress will allow site admins to automatically open external site links to a new window with options for an icon and nofollow rules. This plugin was originally created by Christopher Ross (http://thisismyurl.com) and is now maintained by Etalented (http://etalented.co.uk). Updates to the plugin will be posted on the Etalented website (http://etalented.co.uk/projects/wordpress-plugin-external-links-to-a-new-window) as well as to the WordPress.org Plugin Directory (https://en-gb.wordpress.org/plugins/external-links-to-new-window/).