Facebook launchs a new registration tool that gives website owners the ability to offer quick, easy and social options for sign-up.

Facebook states
By minimizing the friction associated with signing up for a new account and making it easy for people to bring their friends with them, we’ve seen that people are more likely to complete the sign up process, stay on sites longer, share more content, and come back more often. For example, in beta tests with FriendFeed, Facebook sign ups increased 300%.
This powerful plugin allows websites to utilize a single line of code for creating a registration form. This form pre-populates fields with a user’s Facebook data. Thanks to the new tool that wil fill out endless registration and sign-up forms.
To integrate the registration tool is very simple. Here is the Documentation of the New Facebook Registration Tool. To know more details about new registration signup tool, you can visit Facebook Developer’s blog.