List of Bulk Ping Submission Sites
http://www.pingler.com
http://pingomatic.com/
http://ping.in/
http://www.mypagerank.net/service_pingservice_index
http://feedshark.brainbliss.com/
http://autopinger.com/
http://useme.org/
http://kuleping.com/
http://www.pingfarm.com/
http://pingbomb.com/
http://smallseotools.com/
http://www.indexkings.com/