Digital marketing campaigns need to be planned and managed carefully, considering objectives, resources, and content. Effective planning involves reflection on past experiences using models like Gibbs' Reflective Cycle or Kolb's Learning Cycle. An action plan outlines the steps and resources needed to achieve objectives, drawing from reflection. It is important to set the right objectives for content marketing and follow a 70:20:10 rule for communications, using a content matrix to map it all out.