This document discusses 10 things to know about using LinkedIn effectively: 1) Maintain a complete profile with recommendations; 2) Expand your network of connections; 3) Use targeting to reach the right professionals; 4) Join groups in your industry; 5) Share knowledge by answering questions; 6) Use polls to gain insights; 7) Leverage company pages to convey your business; 8) Use APIs to collaborate and share information; 9) Discover events using the LinkedIn application; and 10) Take advantage of LinkedIn resources. The presentation provides an overview of LinkedIn's growth, functionality for professionals, and strategies for individual users and companies to utilize the network.