You don’t hear much about post modernism outside of philosophy and theology. Fact is, post-modernism is the framework by which people think. Not all people mind you. Generally those under 35 look at the world through the lens of a postmodernist. An interesting article came out on how leadership in business will have to adapt to engage the postmodern generation in the workforce.
Those working in the marketing field should already be engaging in postmodern issues if they have any business dealing with 0-35 year olds. If you haven’t, then you’re again, behind the times, and will slowly face a decline in your capabilities if you don’t adjust your perspectives.