Source: http://sourceforge.net/projects/fb2011/Facebook For PhpBB Light
Description
A free PhpBB3 MOD that enables users to register or log into a phpbb forum with an existing Facebook account.
Source: http://sourceforge.net/projects/phpbb-openid/Description
OpenID authentication for phpBB3
Features
Login with any OpenID account, including Google, Yahoo, and Flickr
Use multiple OpenID URLs per account
Register a new account via OpenID
Admin can delete OpenID URLs in the ACP User panel
Tested on phpBB 3.0.5 +
Works with Prosilver & Subsilver2
Related:
https://wiki.phpbb.com/Authentication_plugins
http://sourceforge.net/projects/phpbbmultisso/Description
What these code modifications do, is to create a single sign on across different, multiple domains for both phpbb and other sites/codes/apps to use.
Download: http://sourceforge.net/projects/phpbbmu ... t/download