<https://secure.gravatar.com/avatar/05e28c56e355a8795b6b63e48725c888?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://waiyancan.com/summary-the-7-day-startup-dan-norris/>