Wordpres Update Services – Ping
http://codex.wordpress.org/Update_Services Certain web hosts – particularly free ones – disable the PHP functions used to alert update services. If your web host prevents pings, you should stop WordPress from attempting to ping and consider using the Feedburner Pingshot service. XML-RPC Ping Services http://rpc.pingomatic.com http://rpc.twingly.com http://api.feedster.com/ping http://api.moreover.com/RPC2 http://api.moreover.com/ping http://www.blogdigger.com/RPC2 http://www.blogshares.com/rpc.php http://www.blogsnow.com/ping http://www.blogstreet.com/xrbin/xmlrpc.cgi http://bulkfeeds.net/rpc http://www.newsisfree.com/xmlrpctest.php http://ping.blo.gs/ … Read more Wordpres Update Services – Ping