Many publishers’ digital revenues have been on an upward swing in recent years — but it’s not enough to fill the gaps left by print. According to eMarketer, global digital ad spending in 2015 is expected to reach $170.17 billion. Global mobile ad spending globally should hit $69 billion this year.
That sounds like good news. But there are plenty of caveats for publishers: In 2014, Google, Facebook, AOL, Microsoft, and Yahoo accounted for 61 percent of total digital ad revenue in the U.S., according to Pew’s annual State of the Media report.