PUBLIC MARKS with tags standard & opml

"Standardized Data Portability is the next great frontier for the web. As users, our identity, photos, videos and other forms of personal data should exist outside of any proprietary tool or vendor. We need a DNS for Identity. A distributed File System for data. This page will list the standards and contributors who are making it happen."

This document describes a format for storing outlines in XML 1.0 called Outline Processor Markup Language or OPML.

OPML an XML-based format that allows exchange of outline-structured information between applications running on different operating systems and environments.