ネットの出回っているping送信リスト。実際は結構エラーが出ているのでまとめてみました（随時更新）
成功pingリスト
先に結論、問題ないping送信リストはこちら。（今時http・・・？）
http://rpc.pingomatic.com/
https://ping.blogmura.com/xmlrpc/xgmndjbsxc9l/
http://www.blogpeople.net/servlet/weblogUpdates
http://ping.blo.gs/
http://ping.fc2.com/
http://ping.feedburner.com/
http://ping.rss.drecom.jp/
http://ranking.kuruten.jp/ping
http://www.blogpeople.net/ping/
http://ping.freeblogranking.com/xmlrpc/
http://ping.dendou.jp/
http://blog.with2.net/ping.php/
http://pingoo.jp/ping/
http://rpc.pingomatic.com/
https://ping.blogmura.com/xmlrpc/xgmndjbsxc9l/
http://www.blogpeople.net/servlet/weblogUpdates
http://ping.blo.gs/
http://ping.fc2.com/
http://ping.feedburner.com/
http://ranking.kuruten.jp/ping
http://www.blogpeople.net/ping/
http://ping.freeblogranking.com/xmlrpc/
http://ping.dendou.jp/
http://blog.with2.net/ping.php/
http://pingoo.jp/ping/
エラーとなるpingリスト
» http://blog.goo.ne.jp/XMLRPC could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://blogsearch.google.co.jp/ping/RPC2 could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://blogsearch.google.com/ping/RPC2 could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://rpc.reader.livedoor.com/ping could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://wpdocs.sourceforge.jp/Update_Services could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://ping.blogranking.net/ could not be pinged. Error message: “transport error – could not open socket”
» http://www.blogstyle.jp/ could not be pinged. Error message: “transport error – could not open socket”
» http://rpc.weblogs.com/RPC2 could not be pinged. Error message: “transport error – could not open socket”
» http://services.newsgator.com/ngws/xmlrpcping.aspx could not be pinged. Error message: “transport error – could not open socket”
» http://ping.cocolog-nifty.com/xmlrpc could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://ping.sitecms.net could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://taichistereo.net/xmlrpc/ could not be pinged. Error message: “transport error – HTTP status code was not 200”
» https://ping.blogmura.com/xmlrpc/xgmndjbsxc9l/ was successfully pinged (extended format)
» http://blog.goo.ne.jp/XMLRPC could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://blogsearch.google.co.jp/ping/RPC2 could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://blogsearch.google.com/ping/RPC2 could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://rpc.reader.livedoor.com/ping could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://wpdocs.sourceforge.jp/Update_Services could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://ping.blogranking.net/ could not be pinged. Error message: “transport error – could not open socket”
» http://www.blogstyle.jp/ could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://rpc.weblogs.com/RPC2 could not be pinged. Error message: “transport error – could not open socket”
» http://services.newsgator.com/ngws/xmlrpcping.aspx could not be pinged. Error message: “transport error – could not open socket”
» http://ping.cocolog-nifty.com/xmlrpc could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://ping.sitecms.net could not be pinged. Error message: “transport error – HTTP status code was not 200”
» http://taichistereo.net/xmlrpc/ could not be pinged. Error message: “transport error – HTTP status code was not 200”
成功したping送信リスト
» http://rpc.pingomatic.com/ was successfully pinged (extended format)
» https://ping.blogmura.com/xmlrpc/xgmndjbsxc9l/ was successfully pinged (extended format)
» http://www.blogpeople.net/servlet/weblogUpdates was successfully pinged (extended format)
» http://ping.blo.gs/ was successfully pinged (extended format)
» http://ping.fc2.com/ was successfully pinged
» http://ping.feedburner.com/ was successfully pinged (extended format)
» http://ping.rss.drecom.jp/ was successfully pinged (extended format)
» http://ranking.kuruten.jp/ping was successfully pinged
» http://www.blogpeople.net/ping/ was successfully pinged (extended format)
» http://ping.freeblogranking.com/xmlrpc/ was successfully pinged
» http://ping.dendou.jp/ was successfully pinged
» http://blog.with2.net/ping.php/ was successfully pinged (extended format)
» http://pingoo.jp/ping/ was successfully pinged
» http://rpc.pingomatic.com/ was successfully pinged (extended format)
» https://ping.blogmura.com/xmlrpc/xgmndjbsxc9l/ was successfully pinged (extended format)
» http://www.blogpeople.net/servlet/weblogUpdates was successfully pinged (extended format)
» http://ping.blo.gs/ was successfully pinged (extended format)
» http://ping.fc2.com/ was successfully pinged
» http://ping.feedburner.com/ was successfully pinged (extended format)
» http://ranking.kuruten.jp/ping was successfully pinged
» http://www.blogpeople.net/ping/ was successfully pinged (extended format)
» http://ping.freeblogranking.com/xmlrpc/ was successfully pinged
» http://ping.dendou.jp/ was successfully pinged
» http://blog.with2.net/ping.php/ was successfully pinged (extended format)
» http://pingoo.jp/ping/ was successfully pinged