http://rpc.pingomatic.com/ 1470.net/api/ping www.a2b.cc/setloc/bp.a2b api.feedster.com/ping api.moreover.com/RPC2 api.moreover.com/ping api.my.yahoo.com/RPC2 api.my.yahoo.com/rss/ping www.bitacoles.net/ping.php bitacoras.net/ping blogdb.jp/xmlrpc www.blogdigger.com/RPC2 blogmatcher.com/u.php www.blogoole.com/ping/ www.blogoon.net/ping/ www.blogpeople.net/servlet/web… www.blogroots.com/tb_populi.bl… www.blogshares.com/rpc.php www.blogsnow.com/ping www.blogstreet.com/xrbin/xmlrp… blog.goo.ne.jp/XMLRPC bulkfeeds.net/rpc coreblog.org/ping/ www.lasermemory.com/lsrpc/ mod-pubsub.org/kn_apps/blogcha… www.mod-pubsub.org/kn_apps/blo… www.newsisfree.com/xmlrpctest…. ping.amagle.com/ ping.bitacoras.com ping.blo.gs/ ping.bloggers.jp/rpc/ ping.blogmura.jp/rpc/ ping.cocolog-nifty.com/xmlrpc ping.exblog.jp/xmlrpc ping.feedburner.com ping.myblog.jp ping.rootblog.com/rpc.php ping.syndic8.com/xmlrpc.php ping.weblogalot.com/rpc.php ping.weblogs.se/ pingoat.com/goat/RPC2 www.popdex.com/addsite.php rcs.datashed.net/RPC2/ rpc.blogrolling.com/pinger/ rpc.icerocket.com:10080/ rpc.pingomatic.com/ rpc.technorati.com/rpc/ping rpc.weblogs.com/RPC2 www.snipsnap.org/RPC2 trackback.bakeinu.jp/bakeping…. topicexchange.com/RPC2 www.weblogues.com/RPC/ xping.pubsub.com/ping/ xmlrpc.blogg.de/ pinger.onejavastreet.com/ pingomatic.com/ pingoat.com/ www.pingmyblog.com/ fgiasson.com/pings/ping.php rpc.icerocket.com:10080/
Not as far as I know - I'm 90% sure all still live, but it might be worth going through them once just to make sure.