AutoPing is Drupal module which provide ability to automatically notifies popular Update Services that you’ve updated your blog by sending a XML-RPC ping each time you create or update a post. In turn, Update Services process the ping and updates their proprietary indices with your update. It is good for SEO.
This module also has ability to control ping frequency by setting minimum period to be allowed for re-pinging edited content, to prevent unnecessary ping and saves your site from getting banned by such services.
The current version is only work for Drupal 7x.