Combine social media APIs and XML-based data formats

Combine social media APIs and XML-based data formats: "Explore the concepts, design, and implementation details pertaining to interacting with social media sites using various APIs and XML-based data formats such as Really Simple Syndication (RSS), Atom, Facebook Markup Language (FBML), OpenSocial Markup Language (OSML), SOAP, and plain old XML (POX)."