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"The Google team has just announced that your Google Sites web site -- that is, the sites.google.com properties -- can be submitted to Google Webmaster Central.  This fixes a bug with verification that we reported on June 16. Google has written up a help document on how to submit your site but also how to verify it.  Great news for those hosting their sites on Google properties; you weren't left in the dark!Forum discussion continues at Google Groups."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/017850.html>