Delayed or Scheduled Ping With WordPress

I've been waiting for this forever! You can now delay or schedule your pings for those future dated entries with this cool plugin. Previously, WordPress would ping the update services immediately after you hit publish so even if you schedule the entry for tomorrow or next week, it would ping immediately. This is not good because when a crawler comes looking or when people click through they may find that the blog has not changed or be presented with a not found page and can be percieved as spam.

This plugin will basically supress the ping at publish function and then check every so often to see if the blog has new entries. If it does it will automatically ping the update services. And another nice thing about the new 1.5.1.x Wordpress, it supports extended pings. What is that?

In a basic ping, the update services only receives your URL. But with extended pings, update services receive both URL and RSS feed URL. How is that better? From my research, I found out something I didn't know.
"Some update services (like PubSub), won't read your blog unless they get your RSS feeds too" - from As I May Think.
Because of that, we're not maximizing our syndication opportunities, SEO or whatever the reason you blog and ping. Hmmm something to think act on huh?

I only started researching this today and I'm certain there are more benefits than just that because in Dave Winer's blog he said
"In December 2004, as an experiment, we implemented an "extended" ping handler that allows a caller to specify the address of an RSS feed in addition to the address of the weblog. This could make it easier for applications that use the output of weblogs.com to do interesting things with RSS." I wonder what interesting things...

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