1. The document discusses the evolution of digital advertising, from early printed ads to today's highly targeted real-time bidding system.
2. It notes that digital advertising allows for highly fragmented and individual impressions, breaking the traditional content-audience relationship.
3. The rise of real-time bidding (RTB) allows advertisers to examine site visitors individually and bid to serve ads within milliseconds, leading to more relevant ads. Global RTB spending has grown significantly between 2010-2016.