Atom can be used as a WeblogPing API in alternative to the old school XML-RPC weblogUpdates.ping method.
How ?
Just post Atom top/feed level elements on the PingServer :
POST /AtomPing HTTP/1.1 Host: pingomatic.com Content-Type: application/x.atom+xml
<?xml version="1.0" encoding="utf-8"?>
<ping version="0.3" xmlns="http://purl.org/atom/ns#">
<title>dive into mark</title>
<link rel="alternate" type="text/html" href="http://diveintomark.org/"/>
<link rel="alternate" type="application/x.atom+xml" href="http://diveintomark.org/xml/atom.xml"/>
<link rel="alternate" type="application/rss+xml" href="http://diveintomark.org/xml/rss.xml"/>
<modified>2003-12-13T18:30:02Z</modified>
<tagline mode="escaped">Every time you use TypeKey, God kills a kitten.</tagline>
<generator url="http://www.movabletype.org/" version="2.66">Movable Type</generator>
<copyright mode="escaped">Copyright © 2004, Mark Pilgrim</copyright>
<author>
<name>Mark Pilgrim</name>
</author>
</ping>
