Sitemap Update Ping is a plugin for Joomla 2.5 and Joomla 3.x. It sends a ping to various search engines, notifying them that your sitemap has been updated and should be refreshed (leading to the new content being crawled).
You can view the plugin documentation here
Further detail on the plugin can be found in the Web shop
|XMLRPCPLG-1||Bug||Major||ASK no longer support Sitemap Notifications||Closed||Fixed||2016-03-03 13:21:47|
|XMLRPCPLG-2||New Feature||Major||Add Support For Moreover Technologies||Open||2016-03-03 13:23:45|
|XMLRPCPLG-3||New Feature||Major||Allow User To Specify XMLRPC Services||Open||2016-03-03 13:56:08|