Expedia Spends More on Search Than Any Other Booking Site in the U.S.

Skift Take
The top 10 U.S. travel advertisers in paid search in 2012 also filled out the top 10 in 2013, although their positions changed somewhat. This shows how difficult it is for travel startups and other companies that were not early adopters to break through and get their messages out to consumers.
Booking.com gets a ton of publicity about being tops in the travel industry in paid search on a global basis, but it may not be as widely known that Expedia.com outspends Booking.com in paid search in the U.S.
It didn't provide much detail, but Adgooroo states Expedia.com ranked 10th among all advertisers in paid search in the U.S. in 2013 while Booking.com, which only really showed up in the U.S. a couple of years ago, took the 11th slot -- behind Expedia.com.
But, Adgooroo did go into detail [see chart below] about the top U.S. travel advertisers in Google AdWords (desktop/tablet) in 2013 in terms of ad impressions (ads shown to users), and Booking.com took the number one slot, edging out TripAdvisor, 793 million impressions versus 781 million, respectively.
In so doing, Booking