I agree. If the internet is distracting the professor for some reason, he or she has the right to ask that participant to leave. But they should embrace this and discuss. Ask, why is that important? Professors need to learn that learning is not about professor knowing and students memorizing any longer. It's more about professor leading, sharing experience and insights that the students don't have. Information is out there - knowledge is the application and experience wrapped up in that information that the professor has that students do not.