Both forecasts come from digital research eMarketer’s Digital Ad Spending by Industry series, and highlight the influence of digital ad spending and digital bookings and sales in the travel industry. On the mobile sales front, eMarketer forecasts that mobile travel sales in the U.S. will reach $26.14 billion in 2014, a 59.8% jump compared with 2013. That number would reach $64.69 billion by 2018, which would be 37% of all digital travel sales in the U.S., the researcher states. These trends show how travelers would go beyond doing research on smartphones and tablets as mobile bookings take hold. Get the full story at Skift and eMarketer