This will never happen and here is why: the more companies sign onto an agreement like this, the greater the economic incentive for the remaining companies to

This will never happen and here is why: the more companies sign onto an agreement like this, the greater the economic incentive for the remaining companies to not sign. The scheme would depend on every company signing and yet economics makes that a near impossibility. I doubt very much that companies such as Youtube, google or Facebook would allow ISPs to effectively 'block' them without some legal challenges. Add to that the first amendment lawsuits that are sure to crop up en mass and I think we can put the likelihood of this happen down to near-zero.