%%site.name%% supports the [OpenID](http://openid.net/) standard for single signon between Web sites. OpenID lets you log into many different Web sites without using a different password for each. (See [Wikipedia's OpenID article](http://en.wikipedia.org/wiki/OpenID) for more information.)
* [Google](http://www.google.com/) : If you have a Google profile, you can log in to this site by entering your profile URL.
* [Yahoo!](http://openid.yahoo.com/) : If you have an account with Yahoo!, you can log in to this site by entering your Yahoo!-provided OpenID. Yahoo! OpenID URLs have the form *https://me.yahoo.com/yourusername*.
* [AOL](http://dev.aol.com/aol-and-63-million-openids) : If you have an account with [AOL](http://www.aol.com/), like an [AIM](http://www.aim.com/) account, you can log in to %%site.name%% by entering your AOL-provided OpenID. AOL OpenID URLs have the form *http://openid.aol.com/yourusername*. Your username should be all lowercase, no spaces.
* [Blogger](http://bloggerindraft.blogspot.com/2008/01/new-feature-blogger-as-openid-provider.html), [Wordpress.com](http://faq.wordpress.com/2007/03/06/what-is-openid/), [LiveJournal](http://www.livejournal.com/openid/about.bml): If you have a blog on any of these services, enter your blog URL in the box above. For example, *http://yourusername.blogspot.com/*, *http://yourusername.wordpress.com/*, *http://yourusername.livejournal.com/*, or *http://yourusername.vox.com/*.