The document discusses building a robust personal professional network, or "I-Network". It defines an I-Network as using both strong offline connections and weaker online ties. The benefits of smarter online networking include access to expertise, new ideas, insights, and opportunities. However, maintaining appropriate boundaries is important. Effective networking involves analyzing one's existing network for diversity, de-layering less useful connections, and leveraging online tools to strategically expand and maintain the network. The goal is to develop a diverse "core" network that provides benefits such as learning, support, and professional development.