WordPress.com Connect

WordPress.com Connect | Developer Resources
A secure and easy way for millions of WordPress.com users to log in to your website or app. By integrating with WordPress.com Connect, WordPress.com users can quickly log in and start using your service. Their profile information is shared with your app saving you the hassle of collecting name, email address, etc. You even get…

This is pretty cool! I mean, once sites implement it I’ll be able to log in using another password I can barely fucking remember.