<https://secure.gravatar.com/avatar/7a7f178c25a9bfc4a9719cb88564b650?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://paradacreativa.es/herramientas-para-crear-un-blog/>