Why not log into web sites via email without any password?
dpcan: I like the direction you are going.Access to your website stays in my control.  I'm not depending on a 3rd party service, OpenID, or anything else, it's my own personal email account, and that email account's ability to receive email is all that's required for it to work.1) I enter my email address on your site.2) My browser plugin sees that I've done this.3) It checks my email for the link from your site, returns to your site, logs me in with that secure link, and I never had to enter a password.This feels very similar to OpenID, only I don't need to rely on a service that's a part of the OpenID movement, and my password stays with me, my domain, and my email account wherever I choose to host it.