Pinging is a way to let search engines and other websites know that an update has been made on your website or blog. You can manually ping your site at websites such as Pingomatic or Pingoat. However most common blog software platforms provide automatic pinging services.

To enable pinging in Word Press, in the Admin section, navigate to Options / Writing. Entries can be added to the Update Services box. By default, Word Press pings '//rpc.pingomatic.com/' only, but you may want to add other ping services.

Here is a comprehensive list of ping services:

//1470.net/api/ping
//api.feedster.com/ping
//api.moreover.com/ping
//api.moreover.com/RPC2
//api.my.yahoo.com/RPC2
//api.my.yahoo.com/rss/ping
//bblog.com/ping.php
//bitacoras.net/ping
//blo.gs/ping.php
//blog.goo.ne.jp/XMLRPC
//blogmatcher.com/u.php
//blogsearch.google.com/ping/RPC2
//bulkfeeds.net/rpc
//coreblog.org/ping/
//geourl.org/ping
//ipings.com
//mod-pubsub.org/kn_apps/blogchatt
//ping.amagle.com/
//ping.bitacoras.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.feedburner.com/
//ping.myblog.jp
//ping.myblog.jp/
//ping.rootblog.com/rpc.php
//ping.syndic8.com/xmlrpc.php
//ping.weblogalot.com/rpc.php
//ping.weblogs.se/
//pinger.blogflux.com/rpc/
//pingoat.com/goat/RPC2
//pingqueue.com/rpc/
//rcs.datashed.net/RPC2/
//rpc.blogbuzzmachine.com/RPC2
//rpc.blogcatalog.com
//rpc.blogrolling.com/pinger/
//rpc.copygator.com/ping/
//rpc.icerocket.com:10080
//rpc.icerocket.com:10080/
//rpc.newsgator.com/
//rpc.odiogo.com/ping/
//rpc.pingomatic.com
//rpc.pingomatic.com/
//rpc.technorati.com/rpc/ping
//rpc.twingly.com
//rpc.weblogs.com/RPC2
//services.newsgator.com/ngws/xmlrpcping.aspx
//topicexchange.com/RPC2
//trackback.bakeinu.jp/bakeping.php
//www.a2b.cc/setloc/bp.a2b
//www.bitacoles.net/ping.php
//www.blogdigger.com/RPC2
//www.bloglines.com/ping
//www.bloglot.com/rpc/
//www.blogoole.com/ping/
//www.blogoon.net/ping/
//www.blogpeople.net/servlet/weblogUpdates
//www.blogroots.com/tb_populi.blog?id//1
//www.blogshares.com/rpc.php
//www.blogsnow.com/ping
//www.blogstreet.com/xrbin/xmlrpc.cgi
//www.feedsubmitter.com
//www.lasermemory.com/lsrpc/
//www.mod-pubsub.org/kn_apps/blogchatter/ping.php
//www.newsisfree.com/RPCCloud
//www.newsisfree.com/xmlrpctest.php
//www.pingerati.net
//www.pingmyblog.com
//www.popdex.com/addsite.php
//www.snipsnap.org/RPC2
//www.weblogalot.com/ping
//www.weblogues.com/RPC/
//xmlrpc.blogg.de
//xmlrpc.blogg.de/
//xping.pubsub.com/ping/