https://biz.prlog.org/tag/portervision/ PorterVision - Free business directory on PRLog.Org, latest companies listed first. 60 https://biz.prlog.org/portervision/ Patrick K. Porter, Ph.D., founder of PorterVision, is an award-winning author, consultant, successful entrepreneur, and experienced speaker.Wed, 07 Jul 2010 16:07:15 GMT