This plugin creates a javascript widget in your sidebar that shows ads to your site visitors based on what country they're in.

This plugin finds the country and city of the user by the IP address and saves the info in a cookie and in the session. Furthermore, for sites using qTranslate X for multilanguage, it can set the language of the site upon the user’s first visit, using country-based rules that you set up in the plugin options.

Show IP Geolocation on your website

This plugin uses the MaxMind GeoIP JS Web Service to return the Country, Region, City, Latitude, and Longitude WordPress shortcodes.

IP2Location Hello Greeting plugin displays the Hello greeting message in visitor's native language based on visitor's origin country.