<http://www.webmastersgallery.com/2020/10/26/8-ways-to-improve-ppc-landing-page-conversions-using-color-psychology/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://www.webmastersgallery.com/2020/10/26/8-ways-to-improve-ppc-landing-page-conversions-using-color-psychology/>