If no bill is send, no tax can be claimed. And free services never are really free. This are the two reasons why free internet services should be forbidden. If one would be obliged to pay for a search engine, let say a minimum of the cost plus 10%, one probably would see a range of specialised search engines emerge beside Google. Facebook would have all kind of local competitors, and so on. Local governments would get an honest share of the pie. Privacy would no longer be an issue, because one doesn't need to pay with privacy for a service that claims to be free. Why governments don't stop the illusion of free services, and really do something about privacy and forbid free services?