Does anybody know or have any documents which I can use to build a site that consume OpenID? For example when user come to my site I accept an OpenID, then I will redirect them to OpenID provider, then when they are authenticated then they will be redirected back.
I just want to know is there any steps or standard URLs to be used?
This is a question for Google, really. Here is a plausible-looking explanation on how to implement OpenID support on an existing website.