This document discusses crowdpromoting, which is forming a group to expand marketing reach through teamwork. It provides examples of how different organizations, like Mass Inno and NASA, have successfully used crowdpromoting. They build communities by offering unique access, content, or opportunities to influence audiences of thousands. Effective crowdpromoting requires determining goals, building an interested crowd through offers of self-interest or satisfaction, and providing direction through controlled messaging and shared materials on social media.