If the New Marketing can be characterized by just one idea, it's this: Ideas that spread through groups of people are far more powerful than ideas delivered at an individual.Social change, education, new-product launches, religious movements... it doesn't matter, the story is the same. Movements are at the heart of change and growth. A movement - an idea that spreads with passion through a community and leads to change - is far more powerful than any advertisement ever could be.As you consider what to do next, you're faced with a difficult choice. It's difficult because it represents giving up something you may be quite comfortable with, and it's difficult because it requires an all-or-nothing commitment.