MarketWatch: The 2015 total advertising spending market enjoyed a 7 percent bump compared with 2014, led by solid growth in the digital media category, according to data from Standard Media Index. Digital advertising saw the most growth, finishing the month of December up 34 percent. TV ad spending declined slightly in December, down 3 percent. “There’s obviously a lot of change happening and we’re at an inflection point because audiences continue to switch to digital platforms.”