50% is a guess based more on the linked article that shows the internet share of advertising's growth rate is slowing down (http://images.bwbx.io/cms/2014-02-28

50% is a guess based more on the linked article that shows the internet share of advertising's growth rate is slowing down (http://images.bwbx.io/cms/2014-02-28/ADS_revenue-after-5-years.jpg http://images.bwbx.io/cms/2014-02-28/ADS_revenue-after-5-yea...). Also look at the linked graph from the 1.29% article: http://images.bwbx.io/cms/2014-02-28/ADS_medium_share2.jpg http://images.bwbx.io/cms/2014-02-28/ADS_medium_share2.jpg Each generation of advertising takes over more, but magazine, radio, are remarkably robust. TV will remain too (even if some transfers to Hulu/Netflix/etc...).