PUBLIC MARKS with tags api & protocol

The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook.

Its a rare day that a truly good standard comes along. Its an even rarer day that the standard get widely adopted. So the developers of Atom should stand up and take a bow - not only did they hit a home run with the Atom syndication format, they've done it again with the Atom publishing protocol. In case you are not familiar with Atom, the syndication format provides a standard format for saving blog content in XML and the publishing protocol provides a standard API for clients to read, create or update Atom documents stored on servers.

Warning, you're about to see Naked Protocol Headers.