"Globally speaking Google drives a huge amount of traffic to publishers for free -- 6+ billion visits per month. This provides real economic value also for German publishers," he said.
While the publishers disagree, they first want to see what the result of the implementation of the opt-in will be when the law enters into force, Klotzki said, adding that it is too early for legal action against Google.
Loek is Amsterdam Correspondent and covers online privacy, intellectual property, open-source and online payment issues for the IDG News Service. Follow him on Twitter at @loekessers or email tips and comments to firstname.lastname@example.org