I tried this plugin but it gives back a 403 error when you try to connect, this is it:
We're sorry, but we could not fulfill your request for /?oa_social_login_source=widget on this server.
You do not have permission to access this server. Data may not be posted from offsite forms.
Your technical support key is: 5478-1aca-cd36-1abb
You can use this key to fix this problem yourself.
If you are unable to fix the problem yourself, please contact administracion at muvin.es and be sure to provide the technical support key shown above.
And it takes to: http://ioerror.us/bb2-support-key?key=5478-1aca-cd36-1abb
My website is: http://muvin.es using premium theme "score" from themeforest.