http://api.moreover.com/RPC2
http://bblog.com/ping.php
http://blogsearch.google.com/ping/RPC2
http://ping.weblogalot.com/rpc.php
http://ping.feedburner.com
http://ping.syndic8.com/xmlrpc.php
http://ping.bloggers.jp/rpc/
http://rpc.pingomatic.com/
http://rpc.weblogs.com/RPC2
http://rpc.technorati.com/rpc/ping
http://topicexchange.com/RPC2
http://www.blogpeople.net/servlet/weblogUpdates
http://xping.pubsub.com/ping
