According to eMarketer in the next 3 years, mobile phone penetration will rise from 61.1% to 69.4%. 2015 will be the year of more personalized customer interactions. Marketers will leverage more on accurate measurement tools and will embrace mobile expansion around the world. Matthew Idema (Product Marketing Director, Ads, Facebook), writes in his article link about some of the trends in digital marketing that will be popular in 2015: http://digitalmarketingmagazine.co.uk/digital-marketing-features/2015-digital-marketing-predictions/1373