I found this list through Google a few months ago... thought it may come in handy for other people too: http://rpc.pingomatic.com/ http://api.moreover.com/ping http://api.my.yahoo.com/rss/ping http://blogsearch.google.com/ping/RPC2 http://cullect.com/feed/ping http://ping.bitacoras.com http://ping.feedburner.com http://ping.syndic8.com/xmlrpc.php http://rpc.blogrolling.com/pinger/ http://rpc.icerocket.com:10080/ http://rpc.technorati.com/rpc/ping http://rpc.weblogs.com/RPC2 http://topicexchange.com/RPC2 http://www.blogdigger.com/RPC2 http://www.blogoole.com/ping/ http://www.popdex.com/addsite.php http://www.wasalive.com/ping/ http://www.weblogues.com/RPC/ http://blogping.unidatum.com/RPC2/ http://api.feedster.com/ping http://ping.amagle.com/ http://ping.blo.gs/ http://ping.rootblog.com/rpc.php http://ping.weblogalot.com/rpc.php http://rcs.datashed.net/RPC2/ http://rpc.blogbuzzmachine.com/RPC2 http://rpc.newsgator.com/ http://www.blogoon.net/ping/ http://www.blogsnow.com/ping http://www.blogstreet.com/xrbin/xmlrpc.cgi http://www.lasermemory.com/lsrpc/ http://www.newsisfree.com/RPCCloud http://www.snipsnap.org/RPC2 http://1470.net/api/ping http://api.feedster.com/ping http://api.feedster.com/ping.php http://api.moreover.com/ping http://api.moreover.com/RPC2 http://api.my.yahoo.com/RPC2 http://api.my.yahoo.com/rss/ping http://bblog.com/ping.php http://bitacoras.net/ping http://blogdb.jp/xmlrpc http://blog.goo.ne.jp/XMLRPC http://blogmatcher.com/u.php http://bulkfeeds.net/rpc http://coreblog.org/ping/ http://mod-pubsub.org/kn_apps/blogchatt https://phobos.apple.com/WebObjects/MZFinance.woa/wa/pingPodcast http://ping.amagle.com/ http://ping.bitacoras.com http://ping.bloggers.jp/rpc/ http://ping.blogmura.jp/rpc/ http://ping.blo.gs/ http://ping.cocolog-nifty.com/xmlrpc http://pinger.blogflux.com/rpc/ http://ping.exblog.jp/xmlrpc http://ping.feedburner.com http://ping.myblog.jp http://pingoat.com/goat/RPC2 http://pingqueue.com/rpc/ http://ping.blogg.de/ http://ping.rootblog.com/rpc.php http://ping.syndic8.com/xmlrpc.php http://ping.weblogalot.com/rpc.php http://ping.weblogs.se/ http://rcs.datashed.net/RPC2/ http://rpc.blogbuzzmachine.com/RPC2 http://rpc.blogrolling.com/pinger/ http://rpc.britblog.com/ http://rpc.icerocket.com:10080/ http://rpc.newsgator.com/ http://rpc.pingomatic.com/ http://rpc.tailrank.com/feedburner/RPC2 http://rpc.technorati.com/rpc/ping http://rpc.weblogs.com/RPC2 http://rpc.wpkeys.com/ http://services.newsgator.com/ngws/xmlrpcping.aspx http://signup.alerts.msn.com/alerts-PREP/submitPingExtended.doz http://topicexchange.com/RPC2 http://trackback.bakeinu.jp/bakeping.php http://www.a2b.cc/setloc/bp.a2b http://www.bitacoles.net/ping.php http://www.blogdigger.com/RPC2 http://www.blogoole.com/ping/ http://www.blogoon.net/ping/ http://www.blogpeople.net/servlet/weblogUpdates http://www.blogroots.com/tb_populi.blog?id=1 http://www.blogshares.com/rpc.php http://www.blogsnow.com/ping http://www.blogstreet.com/xrbin/xmlrpc.cgi http://www.lasermemory.com/lsrpc/ http://www.imblogs.net/ping/ http://www.mod-pubsub.org/kn_apps/blogchatter/ping.php http://www.newsisfree.com/RPCCloud http://www.newsisfree.com/xmlrpctest.php http://www.popdex.com/addsite.php http://www.rssfwd.com/xmlrpc/api http://www.snipsnap.org/RPC2 http://www.weblogues.com/RPC/ http://xmlrpc.blogg.de http://xping.pubsub.com/ping/ Code (markup):