Open source OpenInviter (Open Inviter) is an free import contacts (addressbook) script from email providers like Rambler, Sapo.pt, Inbox.com, GMX.net, Wp.pt, Mail.in, Uk2, AOL, Netaddress, Hushmail, Clevergo, Gawab, Yandex, Rediff, Web.de, Zapakmail, KataMail, Yahoo!, Nz11, Popstarmail, Doramail, OperaMail, GMail, Abv, Care2, Walla, Lycos, Bigstring, Evite, Live/Hotmail, Mynet.com, Libero, Azet, 5Fm, IndiaTimes, FastMail, Apropo, Terra, Mail.ru, Mail.com or social portals like Xing, Cyworld, Friendster, Flixster, Plaxo, Xanga, Tagged, Hi5, Bebo, Skyrock, Orkut, LinkedIn, Last.fm, Hyves, Flickr, Meinvz, MySpace, Twitter, Perfspot, Facebook. This contacts importer script is integrating with content management systems (aka CMS) like Wordpress, vBulletin, Joomla, SimpleMachines Forum (SMF), PhpBB, PunBB, JamRoom, Social Engine, Joomla1.0, Drupal. Open Inviter is written in PHP 5 (no database required but cURL or wget required) and running on any webserver (tested on Apache) offering advanced tell a friend features. OpenInviter is a free self hosted solution that does not use a third party gateway (or API) to import contacts.