Is there a PHP plugin or an open project offering a simple login/connection system to most of the major sign in providers simply by providing an API key then storing the linked account information in MySQL? Or is there a system that can be extended to include various other login providers as they become available?
- Google Account / gmail / blogger
- Yahoo! OpenId / ymail / Flickr
- Facebook Connect
- OpenId
- MyOpenId
- MediaWiki
- Wordpress OpenID
- MySpaceID
- AOL / AIM
- Windows Live