Time spent on Facebook
is still growing, but not as fast.That's the conclusion of a forecast published Tuesday by research firm eMarketer
.It says Americans will spend one minute more on Facebook
by 2018. adults will spend an average of 22 minutes a day on Facebook
and 43 minutes a day on social media services. This year, Facebook
will generate 35 cents in ad revenue per hour spent by an adult on a mobile device versus 19 cents for desktops and laptops.Giving mobile its biggest bump.