If you want to knock out all the major directories in one shot take a look at the following XML-RPC sites compiled by Robin Good from
MasterNewMedia. I didn't re-check all these so some may now be obsolete.
The URLs between parentheses are not regular hyperlinks, but addresses of the respective ping services belonging to each directory.
Blo.gs (service URL:
http://ping.blo.gs/) - verified
Weblogs (service URL:
http://rpc.weblogs.com/RPC2) - ambiguous results
FeedBurner has a service called PingShot. With this service, FeedBurner automatically pings the services every time you add a new entry. It requires using FeedBurner for your feeds.
Technorati (service URL:
http://rpc.technorati.com/rpc/ping) - verified
Technorati Ping Configurations - Detailed instructions
MyYahoo! (service URL:
http://api.my.yahoo.com/rss/ping) - not found
BlogChatter (service URL:
http://www.mod-pubsub.org/kn_apps/blogchatter/ping.php) - not clear how this is supposed to work (site and link not working at last check)
PubSub (service URL:
http://xping.pubsub.com/ping/) - not updated
BlogDigger (service URL:
http://www.blogdigger.com/RPC2)- unverified
Feedster (service URL:
http://api.feedster.com/ping.php) - requires feed to be manually submitted first; not yet verified
BlogRolling (service URL:
http://rpc.blogrolling.com/pinger/) - not updated
BlogStreet (service URL:
http://www.blogstreet.com/xrbin/xmlrpc.cgi) requires one-time manual blog URL submission
Moreover (service URL:
http://api.moreover.com/ping) - not yet verified
Weblogalot (service URL:
http://ping.weblogalot.com/rpc.php) - not yet verified
IceRocket (service URL:
http://rpc.icerocket.com:10080/) - not yet verified
TopicExchange (service URL:
http://topicexchange.com/RPC2) - not yet verified
BlogShares (service URL:
http://www.blogshares.com/rpc.php) retrieves its data from weblogs.com; requires one-time manual submission not yet verified
NewsIsFree (service URL:
http://www.newsisfree.com/xmlrpctest.php3) not yet verified
Blog Buzz Machine (service URL:
http://rpc.blogbuzzmachine.com/RPC2) not verified