Is traffic really generated by magazine adverts?

With the main objective to get people to read the ad and then go to a website for more information, I have seen many adverts in the PC press recently. A number of years go, I remember that this was happening. However, I had thought that by now online resources would have been used to generate web traffic by suppliers. Is web traffic generated by traditional print media products? Would it be better if advertisers invested into media that aren’t monitoried easily? To get online, do you think that in this case less effort would be needed by potential customers?