[marco1]

This is not blackmailing but a mafia-like protection racket scheme: They create a problem (ads not showing up) that they offer the solution for themselves as well (white-labeling).

[FractalNerve]

Cool, this is the best description of the business model that I've read so far. White-Listing doesn't nearly sound like what you described.

      * The Mafia like protection racket scheme