When you publish a new post, WordPress automatically notifies a certain number of site update services by sending them a “ping”. Out of the box, WordPress has a list of 18 site update services. While that’s a good start, you should be able to get more links and generate more traffic by using a more comprehensive ping list. Here is a comprehensive list of services you can use:

http://1470.net/api/ping

http://api.moreover.com/RPC2

http://api.my.yahoo.co.jp/RPC2

http://api.my.yahoo.com/RPC2

http://audiorpc.weblogs.com/RPC2

http://blog.goo.ne.jp/XMLRPC

http://blogpeople.net/ping

http://blogsearch.google.ae/ping/RPC2

http://blogsearch.google.at/ping/RPC2

http://blogsearch.google.be/ping/RPC2

http://blogsearch.google.bg/ping/RPC2

http://blogsearch.google.ca/ping/RPC2

http://blogsearch.google.ch/ping/RPC2

http://blogsearch.google.cl/ping/RPC2

http://blogsearch.google.co.cr/ping/RPC2

http://blogsearch.google.co.hu/ping/RPC2

http://blogsearch.google.co.id/ping/RPC2

http://blogsearch.google.co.il/ping/RPC2

http://blogsearch.google.co.in/ping/RPC2

http://blogsearch.google.co.it/ping/RPC2

http://blogsearch.google.co.jp/ping/RPC2

http://blogsearch.google.co.ma/ping/RPC2

http://blogsearch.google.co.nz/ping/RPC2

http://blogsearch.google.co.th/ping/RPC2

http://blogsearch.google.co.uk/ping/RPC2

http://blogsearch.google.co.ve/ping/RPC2

http://blogsearch.google.co.za/ping/RPC2

http://blogsearch.google.com.ar/ping/RPC2

http://blogsearch.google.com.au/ping/RPC2

http://blogsearch.google.com.br/ping/RPC2

http://blogsearch.google.com.co/ping/RPC2

http://blogsearch.google.com.do/ping/RPC2

http://blogsearch.google.com.mx/ping/RPC2

http://blogsearch.google.com.my/ping/RPC2

http://blogsearch.google.com.pe/ping/RPC2

http://blogsearch.google.com.sa/ping/RPC2

http://blogsearch.google.com.sg/ping/RPC2

http://blogsearch.google.com.tr/ping/RPC2

http://blogsearch.google.com.tw/ping/RPC2

http://blogsearch.google.com.ua/ping/RPC2

http://blogsearch.google.com.uy/ping/RPC2

http://blogsearch.google.com.vn/ping/RPC2

http://blogsearch.google.com/ping/RPC2

http://blogsearch.google.de/ping/RPC2

http://blogsearch.google.es/ping/RPC2

http://blogsearch.google.fi/ping/RPC2

http://blogsearch.google.fr/ping/RPC2

http://blogsearch.google.gr/ping/RPC2

http://blogsearch.google.hr/ping/RPC2

http://blogsearch.google.ie/ping/RPC2

http://blogsearch.google.in/ping/RPC2

http://blogsearch.google.it/ping/RPC2

http://blogsearch.google.jp/ping/RPC2

http://blogsearch.google.lt/ping/RPC2

http://blogsearch.google.nl/ping/RPC2

http://blogsearch.google.pl/ping/RPC2

http://blogsearch.google.pt/ping/RPC2

http://blogsearch.google.ro/ping/RPC2

http://blogsearch.google.ru/ping/RPC2

http://blogsearch.google.se/ping/RPC2

http://blogsearch.google.sk/ping/RPC2

http://blogsearch.google.tw/ping/RPC2

http://blogsearch.google.us/ping/RPC2

http://feedsky.com/api/RPC2

http://hamo-search.com/ping.php

http://holycowdude.com/rpc/ping/

http://ping.amagle.com/

http://ping.bitacoras.com

http://ping.blo.gs/

http://ping.bloggers.jp/rpc/

http://ping.blogmura.jp/rpc/

http://ping.blogoon.net/

http://ping.blogs.yandex.ru/RPC2

http://ping.cocolog-nifty.com/xmlrpc

http://ping.exblog.jp/xmlrpc

http://ping.fc2.com/

http://ping.feedburner.com

http://ping.kutsulog.net/

http://ping.myblog.jp

http://ping.namaan.net/rpc

http://ping.rootblog.com/rpc.php

http://ping.snap.com/ping/RPC2

http://ping.syndic8.com/xmlrpc.php

http://ping.weblogalot.com/rpc.php

http://ping.weblogs.se/

http://ping.wordblog.de/

http://pingoat.com/goat/RPC2

http://r.hatena.ne.jp/rpc

http://rcs.datashed.net/RPC2/

http://rpc.blogbuzzmachine.com/RPC2

http://rpc.bloggerei.de/ping/

http://rpc.blogrolling.com/pinger/

http://rpc.icerocket.com:10080/

http://rpc.pingomatic.com

http://rpc.reader.livedoor.com/ping

http://rpc.technorati.com/rpc/ping

http://rpc.technorati.jp/rpc/ping

http://rpc.twingly.com/

http://rpc.weblogs.com/RPC2

http://topicexchange.com/RPC2

http://trackback.bakeinu.jp/bakeping.php

http://wasalive.com/ping/

http://www.blogpeople.net/servlet/weblogUpdates

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/

http://zhuaxia.com/rpc/server.php

To update your ping list:

1. Go to Settings
2. Go to Writing
3. Scroll Down
4. Copy and paste the list in the Update Services box
5. Save the change

If you know of any other update service that I missed, please let others know by commenting on this article.