3. How are these related?
Each Side Attracts More of the Other –
Network Effects
eBay Buyers
Expedia Travelers
Xbox Gamers
AmEx CardHolders
YouTube Viewers
Airbnb Renters
Mechanical Turk Jobs
LinkedIn Job Seekers
Android Users
eBay Sellers
Expedia Airlines/Hotels
Xbox Developers
AmEx Merchants
YouTube Videographers
Airbnb Hosts
Mechanical Turk Laborers
LinkedIn Employers
Android Developers