PhpBB plugin (mod) for logging in with OpenID, ВКонтакте, Yandex etc.
This phpBB modification (mod) lets you use accounts with popular web portals (Yandex, Google, Rambler, Mail.Ru, LiveJournal etc.) social networks such as Vkontake and Facebook, as well as OpenID to log into your phpBB forum.
Visitors to your forum can easily log in and leave messages or create topics without any complex registration procedures.
The mod can retrieve additional user information from their profile (if permitted by the provider) and use this information in the user’s phpBB account.