i made my openid in my site like this :

livejournal: {
        name: 'LiveJournal',
        label: 'Enter your Livejournal username.',
        url: 'http://{username}.livejournal.com/'
    },
    wordpress: {
        name: 'Wordpress',
        label: 'Enter your Wordpress.com username.',
        url: 'http://{username}.wordpress.com/'
    },
    blogger: {
        name: 'Blogger',
        label: 'Your Blogger account',
        url: 'http://{username}.blogspot.com/'
    },

and i want add facebook on my openid provide,

so what is the url of facebook openid ??

thanks

but this can login use facebook:

https://www.gigya.com/site/LogIn.aspx

you can try it by yourself use facebook login.