<http://schema.org/description>
"Google released Google Referrals 2.0 to all advertisers a couple months back.  We now have a detailed WebmasterWorld thread with feedback on if it actually earns publishers money.Most say, no, it does"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/014888.html>