- one Facebook Mobile, unlike the normal web layout, doesn’t have ads built into the interface. Meaning as Mobile grows, ad revenue will suffer.
- twoGame developer Zynga accounts for a whopping 12% of Facebook’s total revenue. Therefore, any trouble for Zynga is trouble for Facebook as well.
- threeFacebook’s revenue grew by 88% last year, which they deem unsustainable. In short, that level of growth will slow down someday.
- fourThey could be sued for copyright infringement due to content uploaded by their users; quite likely the reason they opposed SOPA. source