c2033f7d_ove_the_Crowd___By_Bill_Gurley__Metric_
[Comments:] Zynga is 12% of revenues, but this is fairly low and they are the only company over 10%. Plus, if Zynga stopped competing for these ad purchases, there are many, many Zynga look-alikes that would rush to fill that void. So even if they left tomorrow (which they won’t) the number would not go away completely. [Grade:] A [Metric:] 
Customer Concentration
Why Facebook Clearly Belongs in the 10X Revenue Club | Above the Crowd | By Bill Gurley
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