I was looking at a 112mg error log last week and i discovered that almost all of the errors were related to long gone ping services. I was googling to find the lastest working ping list.
It can be most frustrating trying to hunt down a list of current ping services. As of today, these are working.
http://api.moreover.com/RPC2
http://blogsearch.google.com/ping/RPC2
http://ping.weblogalot.com/rpc.php
http://ping.feedburner.com
http://ping.syndic8.com/xmlrpc.php
http://rpc.pingomatic.com/
http://rpc.weblogs.com/RPC2
http://rpc.twingly.com/
http://www.bloglines.com/ping
http://www.wasalive.com/ping/
Feel free to add to this list.
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