<http://schema.org/url>
<https://techcrunch.com/2009/03/06/elevator-pitch-friday-valu-valu-uses-a-scientific-pricing-model-to-sell-games/>
<https://techcrunch.com/2009/03/06/elevator-pitch-friday-valu-valu-uses-a-scientific-pricing-model-to-sell-games/>