Sources: IgnitionOne [download page], Adobe, Merkle|RKG [download page], Kenshoo
Notes: Search ad spend continued to show strong growth in Q3 both in the US and globally, according to recent reports, building on a first half of the year in which search accounted for half of all US digital ad spending. Click-through rates also grew by double-digits on a year-over-year basis, while costs-per-click were up in the US.
Related: Top Search Ad Position More Important on Mobiles Than Desktops