We examine how former coworkers influence migration decisions following major labor market shocks, using the quasi-experimental setting of German reunification. Displaced East German workers are more likely to move to West Germany if they have former coworkers from the German Democratic Republic already there. Migration is strategic: workers move when their labor market prospects align with those of their contacts already in the West, and those contacts have positive labor market experiences. An extended Roy model rationalizes these findings, suggesting that migration is driven by relevant, job-specific information rather than social support from contacts.