Ping is a term used to denote the process notifying severs about the change in content.Its like receiving a push notification from Facebook app on your smart phone.
So every time your you update your content it will be updated to major search engines like Google,Bing and other ping servers.
let me illustrate an importance of Pinging your blog content.
Viperchill,one of the well known marketing blog was affected by low SERP.Surprisingly Google Webspam head Mattcutts reminded them to update their ping list.Within some days of making change Vipechill was able to recover their SEO ranking on Google.
How to update ping list on WordPress ?
Its much simpler than you thought
Go to Dashboard >> Settings >> Writing
at the bottom of the Settings page you can find field to add ping URLs
Here is a list of some URLs to ping
http://blogsearch.google.com/ping/RPC2 http://1470.net/api/ping http://api.feedster.com/ping http://api.moreover.com/RPC2 http://api.moreover.com/ping http://api.my.yahoo.com/RPC2 http://api.my.yahoo.com/rss/ping http://bblog.com/ping.php http://blog.goo.ne.jp/XMLRPC http://blogdb.jp/xmlrpc http://blogmatcher.com/u.php http://bulkfeeds.net/rpc http://coreblog.org/ping/ http://mod-pubsub.org/kn_apps/blogchatt http://www.lasermemory.com/lsrpc/ http://ping.amagle.com/ http://ping.bitacoras.com http://ping.blo.gs/ http://ping.bloggers.jp/rpc/ http://ping.cocolog-nifty.com/xmlrpc http://ping.blogmura.jp/rpc/ http://ping.exblog.jp/xmlrpc http://ping.feedburner.com http://ping.myblog.jp http://ping.rootblog.com/rpc.php http://ping.syndic8.com/xmlrpc.php http://ping.weblogalot.com/rpc.php http://ping.weblogs.se/ http://pingoat.com/goat/RPC2 http://rcs.datashed.net/RPC2/ http://rpc.blogbuzzmachine.com/RPC2 http://rpc.blogrolling.com/pinger/ http://rpc.icerocket.com:10080/ http://rpc.newsgator.com/ http://rpc.pingomatic.com http://rpc.technorati.com/rpc/ping http://rpc.weblogs.com/RPC2 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.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.snipsnap.org/RPC2 http://www.weblogues.com/RPC/ http://xmlrpc.blogg.de http://xping.pubsub.com/ping/
I hope this small tweak will help you to improve your SEO ranking.Please comment back with your view about WordPress ping.
