Atom Syndication Format IETF RFC 4287 XML format Organized in feeds, entries and links Extensible data and metadata Atom Publising Protocol IETF RFC 5023 Protocol for publishing and editing resources Represents over HTTP Simple RESTful interaction model Demo Photos: https://cumulus.services.li... -Authorization via LiveID http://dev.live.com/liveid -Browse and create folders and photos Folders/Photos as Atom feeds and entries Photos are Atom "media link entries" <feed> ......