The document discusses how paid search advertising is moving away from keyword-based targeting and toward audience-based targeting using signals like demographics, interests, behaviors and more. It provides examples of new ad formats on Google like image ads, product listing ads and comparison shopping ads. It also discusses new monetization models like cost-per-lead and cost-per-acquisition. The document recommends that advertisers learn to target audiences without keywords using tools like interest category targeting and remarketing to stay effective on Google.