Simple past tense and past participle of ping.(verb)
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Use "pinged" in a sentence
"There are also important neurochemical checks and balances between brain centers that are 'pinged' by interaction with others, such that we derive pleasure and good will from simple exchange of words."
"One possible explanation is that I noticed my website wasn't "pinged" by Technorati in a while since Sept. 2008."
"In just a few short hours I have created my own edublog, learnt how to hyperlink lots of editing posts however, "pinged" my blog and now I'm discovering how to tag!"