What GumGum’s Valuation Means for the Future of Ad-techThe contextual ad-tech company raised $75 million in new funding from Goldman Sachs#GumGum#Goldman Sachs#venture capital#advertising cookies#Apple#Google#Phil Schraeder#Lotame#contextual advertising#first-party data#data#Interactive Advertising Bureau#marketing#advertisingWhat GumGum’s Valuation Means for the Future of Ad-tech