<https://www.perc.org/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/e7c5d79c1f0a0498f927b480ab8b0db4?s=96&d=mm&r=g>
<https://www.perc.org/2001/09/01/going-to-seed/>