This feed does not validate.
<feed xmlns="http://www.w3.org/2005/Atom">
<feed xmlns="http://www.w3.org/2005/Atom">
<feed xmlns="http://www.w3.org/2005/Atom">
</entry>
</entry>
</entry>
</entry>
In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendations.
<feed xmlns="http://www.w3.org/2005/Atom">
<content type="application/html">c2FmZTxzY3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB ...
<!--
Author: Sam Ruby (http://intertwingly.net/) and Mark Pilgrim (http://diveintomark.org/)
Copyright: Copyright (c) 2002 Sam Ruby and Mark Pilgrim
-->
<!--
Description: entry content should not contain SCRIPT tag
Expect: SecurityRisk{parent:entry,element:content}
-->
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<content type="application/html">c2FmZTxzY3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB0Ij5sb2NhdGlvbi5ocmVmPSdodHRwOi8nKycvZXhhbXBsZS5jb20vJzs8L3NjcmlwdD4gZGVzY3JpcHRpb24=</content>
</entry>
</feed>