I'm not sure I understand exactly what you're asking. How is which industry growing? If you mean how is ad tech growing, it's growing because digital advertisi

I'm not sure I understand exactly what you're asking. How is which industry growing? If you mean how is ad tech growing, it's growing because digital advertising as a share of total advertising is growing. It's mainly eating up advertising budgets that used to go to newspapers. You can check out this article linked somewhere else in the thread for more data: http://www.bloomberg.com/bw/articles/2014-03-03/advertisings-century-of-flat-line-growth http://www.bloomberg.com/bw/articles/2014-03-03/advertisings...