It remains to be seen whether mobiile ARPU will hurt Facebook's overall ARPU (i.e. start to cannibalize desktop ARPU as more users access facebook via mobile first).

1. Augustine Fou- 1 -
Ad more users shift to mobile, there could be a decline in overall ad ARPU
Mobile Ad ARPU vs Desktop
Augustine Fou- 1 -
Source: Mary Meeker KPCB Internet Trends 2013

2. Augustine Fou- 2 -
Dr. Augustine Fou – Digital Consigliere
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