Surprise! You may already have an OpenID.
If you use any of the following services, you already have your own OpenID. Below are instructions on how to sign in with each of the following providers on an OpenID enabled website. (When you see bold text, you should replace it with your own username or screenname on that service.)
Look for the “Sign in with a Google Account” button or use your Google Profile URL.
mixi is a web service that allows users to communicate with their friends and acquaintances.