Advertising in harmony with the zeitgeist

In the comments on Dave Weinberger’s post on my Blogtalk, Mark Federman (from this blog) writes: “The most important effect of advertising today is to confirm for people that they made the right purchasing decision. People feel good when they have bought something, and then saw an ad telling them, in effect, that they Did the Right Thing. Today, blogs are wired directly to the zeitgeist, so they would be the best indicator of Right Thing (and my fingers initially, and Freudianly hit “Right Think,” which, in retrospect was probably the more correct…) Hence, blogs and advertising are a natural to create the desired effect that advertisers seek (whether they admit it or not.)” Sounds good to me.