<http://schema.org/description>
"Email management can be the bane of your existence for a multitude of reasons.  There's the sheer volume of messages hitting our inbox that causes anxiety and then there's the whole ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2012/02/21/schedule-your-email-delivery-with-this-handy-gmail-add-on/>