<http://schema.org/description>
"Among the features added to the Facebook commenting platform today was the addition of Hotmail integration that allows users to log in via\u00A0their\u00A0Hotmail account.\r\n\r\nThe addition of ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2011/04/12/facebook-comments-update-adds-hotmail-login/>