All we need is some agreement in the metadata schema per resource, like the attributes we will share per song, video, book and so on.
Then create an xml file with that collection of resources and maybe using a naming standard for discovery like mymusic.xml, myvideos.xml and so on.
Post the files in your server and there we go, start sharing your metadata with the world.
You can have all your resources in one metaroll or you could split it in individual collections.
Main resource list named myMetadata.xml:
<metadata version="1.0">
<owner>RebelGeekz</owner>
<published>2004-02-07T10:00:00-05</published>
<updated>2004-02-07T10:00:00-05</updated>
<link>http://geekswithblogs.net/rebelgeekz</link>
<resource type="music" link="mymusic.xml"/>
<resource type="videos" link="myvideos.xml"/>
<resource type="pictures" link="mypictures.xml"/>
<resource type="games" link="mygames.xml"/>
<resource type="books" link="mybooks.xml"/>
<resource type="blogs" link="myblogs.xml"/>
<resource type="porn" link="myporn.xml"/>
</metadata>
This would be myMusic.xml:
<metadata version="1.0">
<owner>RebelGeekz</owner>
<published>2004-02-07T10:00:00-05</published>
<updated>2004-02-07T10:00:00-05</updated>
<link>http://geekswithblogs.net/rebelgeekz</link>
<favorites />
<collection type="music">
<song title="Where the streets have no name" artist="U2" genre="Rock" album="The Joshua Tree" year="1987" track="01" link="mysong01.mp3"/>
<song title="With or without you" artist="U2" genre="Rock" album="The Joshua Tree" year="1987" track="02" link="mysong02.mp3"/>
<song title="Bullet the blue sky" artist="U2" genre="Rock" album="The Joshua Tree" year="1987" track="03" link="mysong03.mp3"/>
<song title="Toxic" artist="Britney Spears" genre="Pop" album="Unplugged" year="2004" track="01" link="mysong04.mp3"/>
</collection>
</metadata>
This myVideos.xml:
<metadata version="1.0">
<owner>RebelGeekz</owner>
<published>2004-02-07T10:00:00-05</published>
<updated>2004-02-07T10:00:00-05</updated>
<link>http://geekswithblogs.net/rebelgeekz</link>
<favorites />
<collection type="videos">
<video title="Sixth Sense" genre="Suspense" year="1995" director="" length="2hrs 30mins" link="myvideos/video1.mpeg" />
<video title="Start Wars" genre="Sci-Fi" year="1989" director="" length="2hrs 30mins" link="myvideos/video2.mpeg" />
<video title="Gladiator" genre="Adventure" year="1999" director="" length="2hrs 30mins" link="myvideos/video3.mpeg" />
</collection>
</metadata>
and so on.
Easy, sharing and whistling we go...