Ben Evans is perhaps the No1 commentator on the Internet right now - worth a follow on twitter, where he does most of his stuff. His take on advertising is particularly acute, with
this essay in essence a defence of the ad tracking business and a lament for its inevitable end. What replaces it is a question Evans asks, but no one else really has. Relevant especially to recruitment technology vendors here - how do you reach your customers when the ads don’t work? (aside from sponsoring brainfood that is)