Facebook - Only 6 percent of ad revenue came from the 100 top ad spenders.

[rcjordan]

Now, that's impressive.  I was once schooled to 'never tell your largest customers that they're your largest customers."  Looks like Zuck went one better.

You Can't Boycott a Monopoly
https://www.vice.com/en_us/article/8895pa/you-cant-boycott-a-monopoly