You can use your email to log into any site that supports
OpenID!
Just enter
http://passwordless.appspot.com/email/<your email address> as
your OpenID URL.
Caveats
- There are some issues left with the rails openid plugin.
- Any reports of sites not working are welcome!
- Code based on App Engine's OpenID Provider.
- Hosted on Google's App Engine (at least until we hit the 20000 daily email limit).
- This service is alpha: send feature requests, bug reports and comments to intraneia@gmail.com.