IAB: Search, the largest category of digital ad spending, generated $40.6B in 2017

Mobile was responsible for 54 percent of paid-search ad revenue last year. Please visit Search Engine Land for the full article.

Please visit Search Engine Land for the full article.

from Search Engine Land: News & Info About SEO, PPC, SEM, Search Engines & Search Marketing https://ift.tt/2KZn8eV via اصول سيو