st2i

WP OpenID Selector is the adaptation of openid-selector (http://code.google.com/p/openid-selector/) to wordpress.
Openid plugin (https://wordpress.org/extend/plugins/openid/) is needed to use wp-openid-selector.
Users who want’s to authenticate (register) on a wordpress blog with openid system, only need to click on the their logo’s provider, instead of writing it’s url, to be automaticaly redirected to their openid server and proceed to the authentication.
You can see the plugin in use on our web site (http://www.st2i.com) or on the stackoverflow web site.

WP OpenId Selector

Adaptation of OpenId Selector for wordpress

Rodrigo Primo

A simple plugin that adds the required meta tags to allow you to use your blog URL as your OpenID identifier with the provider you choose.
This plugins does not allow you to use your WordPress installation as a OpenID consumer or provider.
It was built based on MyOpenID Delegation plugin (https://github.com/benatkin/wordpress-myopenid-delegation).

OpenID Delegation

A simple plugin that adds the required meta tags to allow you to use your blog URL as your OpenID identifier with the provider you choose.

WP OpenId Selector vs OpenID Delegation