Over at the Burning Door, FeedBurner has announced PingShot a service that notifies aggregators and search engines when your feed has been updated. On the post there is an FAQ about the new service.
A quick check of my FeedBurner account shows the new option (click image for larger version):
The default services listed are Technorati and My Yahoo. You can check: PubSub, Ping-o-matic and NewsGator and then add up to three other services which include: Feedster, Icerocket and Weblogs.com
If you have a FeedBurner account you will need to activate this service via your control panel. Outside services such as web directories and search tools may submit their name to receive notifications of updates.
