“This is the first of a two-part review of the way in which certain network structures create advantage. I focus on replicated research results (occasionally presenting new results that link replicated results) concerning the two core principles about network advantage: brokerage and closure. This first part is about brokerage. The argument is that information and practice become sticky within dense social clusters such that network brokers — the people who connect across the structural holes between clusters — have information breadth, timing, and arbitrage advantages that make brokers more likely and able to detect and develop rewarding opportunities. Network brokers tend to be high achievers: better compensated than peers, more positively evaluated, more likely candidates for senior position, and more recognized as leaders in their organization and industry. The criterion evidence for brokerage as a network advantage is that higher achievement is associated with more access to structural holes. I discuss implications for network leadership and close with four cautions about factors that can limit the achievement associated with brokerage.” Download Publication | Download Copenhagen presentation slides. This handout was prepared as a basis for discussion in executive education (Copyright © 2015 Ronald S. Burt, all rights reserved).