<https://www.yinfor.com/#/schema/person/7bbf3021044f6a55b1a7821c49ab6c24>
<http://schema.org/description>
"David is a blogger, geek, web developer. Founder of FreeInOutBoard.com. He check David Yin's Blog everyday. If you like his post, you can say thank you here"
<https://www.yinfor.com/2006/02/voip_enhancement.html>