OutlineProcessorMarkupLanguage (OPML) is a data interchange format based on ExtensibleMarkupLanguage. It has ties to RssFeeds (ref http://en.wikipedia.org/wiki/OPML). ''Note there is a community designed spec completed in 2003 called OutlineMarkupLanguage. This is supposedly a better format, and separates data and presentation.'' * See http://oml.sourceforge.net/cgi-bin/blosxom.cgi/why ** But what significant software uses it? ** To what degree are OML and OPML compatible? ---- '''Resources''' * OPML home http://www.opml.org/ * popular OPML feeds http://feeds.scripting.com/rankings ---- CategoryXml