In its fourth quarter and full year 2015 earnings announcement, Booking.com/Agoda/et al’s umbrella company disclosed it had spent $2.8 billion on online advertising over the course of the 12 months ending December 31 2015. Chief financial officer Daniel Finnegan says there has been “some pressure” over the course of the last three years around the metrics and ROI, but that the company is “well positioned” to take advantage of its expertise in keyword bidding and use of its digital marketing technology. Expedia Inc says it spent $3.3 billion during 2015 – an increase of 23% y/y. Get the full story at Tnooz