http://blogsearch.google.com/ping/RPC2
http://blogpeople.net/servlet/weblogUpdates
http://services.newsgator.com/ngws/xmlrpcping.aspx
http://ping.wordblog.de
http://xping.pubsub.com/ping/
http://www.blogpeople.net/servlet/weblogUpdates
http://ping.myblog.jp/
http://rpc.twingly.com/
http://rpc.reader.livedoor.com/ping
http://r.hatena.ne.jp/rpc
http://ping.namaan.net/rpc
http://ping.kutsulog.net/
http://ping.fc2.com/
http://ping.blogs.yandex.ru/RPC2
http://ping.blogoon.net/
http://hamo-search.com/ping.php
http://audiorpc.weblogs.com/RPC2
http://api.my.yahoo.co.jp/RPC2
http://rpc.weblogs.com/RPC2
http://rpc.pingomatic.com/
http://ping.syndic8.com/xmlrpc.php
http://ping.bloggers.jp/rpc/
http://blog.goo.ne.jp/XMLRPC
http://api.moreover.com/RPC2
http://rpc.blogrolling.com/pinger/
http://ping.blo.gs/