Really Simple Discoverability is a way made by DanielBerlinger to help client software find the services needed to read, edit, or "work with" weblogging software.
See AutoDiscovery
Synopsis
In home/head page of weblog put: <link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://whereever_the_rsd.xml_lives." />
<?xml version="1.0" ?> <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd" > <service> <engineName>Blog Munging CMS</engineName> <engineLink>http://www.blogmunging.com/ </engineLink> <homePageLink>http://www.userdomain.com/ </homePageLink> <apis> <api name="MetaWeblog" preferred="true" apiLink="http://example.com/xml/rpc/url" blogID="123abc" /> <api name="Blogger" preferred="false" apiLink="http://example.com/xml/rpc/url" blogID="123abc" /> <api name="MetaWiki" preferred="false" apiLink="http://example.com/some/other/url" blogID="123abc" /> <api name="Antville" preferred="false" apiLink="http://example.com/yet/another/url" blogID="123abc" /> <api name="Conversant" preferred="false" apiLink="http://example.com/xml/rpc/url" blogID=""> <settings> <docs>http://www.conversant.com/docs/api/ </docs> <notes>Additional explanation here.</notes> <setting name="service-specific-setting">a value</setting> <setting name="another-setting">another value</setting> ... </settings> </api> </apis> </service> </rsd>