How important are referrals for job searching?

Very important — studies show that 40-60% of all jobs are filled through networking and referrals, many never publicly advertised. Referred candidates have a 3-4x higher hiring probability than cold applicants. Practical steps: Contact former colleagues and fellow students, activate LinkedIn connections, attend industry events, and explicitly ask for introductions — 'Do you know anyone at company X you could introduce me to?'