Nothing is keeping them from doing it. They (and others, e.g. the Brave browser and Optimal) have been doing that for a while. Here are a few related links: ht

Nothing is keeping them from doing it. They (and others, e.g. the Brave browser and Optimal) have been doing that for a while. Here are a few related links: https://www.theguardian.com/technology/2014/nov/21/google-contributor-pay-remove-ads https://www.theguardian.com/technology/2014/nov/21/google-co... http://tech.firstpost.com/news-analysis/google-relaunches-contributor-to-help-users-browse-ad-free-pages-380150.html http://tech.firstpost.com/news-analysis/google-relaunches-co... https://blog.brave.com/introducing-brave-payments/ https://blog.brave.com/introducing-brave-payments/ https://medium.com/@robleathern/why-we-sold-optimals-technology-to-sovrn-b8bae5e4a014 https://medium.com/@robleathern/why-we-sold-optimals-technol...