In order to deliver therapy in a practical manner that can be replicated in other primary care practices, patients with significant symptoms of depression will receive treatment with an empirically supported computer program that builds cognitive-behavior therapy skills. Support for CCBT will be provided by telephone and/or e-mail contact with a care coordinator instead of the face-to-face treatment with a cognitive-behavior therapist that has been a part of CCBT delivery in mental health settings. Novel features of this treatment program include: 1) fully detailed and replicable method for integrating clinician support with CCBT in primary care; 2) delivery of CCBT to a population with high percentage of disadvantaged patients; 3) integration of CCBT into the primary care delivery model; 4) highly interactive, multimedia computer program with adaptations for persons who may have lower levels of education or computer experience; 5) advanced cost-benefit analysis including data on actual health care utilization and costs; 6) exploration of moderators and predictors of treatment outcome.