Two different effects of creating a network: for Facebook, you see network effects creating lock-in for users - nobody wants to leave because everyone&#x27;s on it.  For Uber, the network effects make the experience better as the network grows - with more drivers, more riders use it, and vice versa.<p>We often use &quot;network effects&quot; to refer to word of mouth growth and user lock-in, but I think Uber&#x27;s advantage is still a network effect - just a different one.