Send the following on WhatsApp
Continue to ChatVGSummit2007: Why Virtual Goods Matter: What's Driving User Adoption? https://www.raphkoster.com/2007/06/22/vgsummit2007-why-virtual-goods-matter-whats-driving-user-adoption/
VGSummit2007: Why Virtual Goods Matter: What's Driving User Adoption? https://www.raphkoster.com/2007/06/22/vgsummit2007-why-virtual-goods-matter-whats-driving-user-adoption/