Residual depressive symptoms (RDS) following remission of major depressive disorder (MDD) are reported by 80-90% of adults receiving first-line antidepressant pharmacotherapy and carry an elevated risk for a chronic course of illness, rapid relapse and functional impairment. Strategies for managing residual symptoms, however, have met with mixed success. Mindful Mood Balance (MMB; R34 MH0877223) is an individually tailored, web-based treatment designed to train remitted depressed patients to disengage from dysphoria-activated depressogenic thinking that perpetuates RDS and increases risk for relapse/recurrence. MMB was developed to increase access to Mindfulness-Based Cognitive Therapy (MBCT; R01 MH066992), an empirically supported prophylactic group treatment that can be easily sequenced with acute phase antidepressant pharmacotherapy. Results from our open trial of MMB (N=100) showed an effect size of d=1.09 for pre to post treatment reductions in depression scores among patients with RDS and d=1.54 in a quasi-experimental comparison to patients receiving usual care, with an on average reduction of 1.98 points on the PHQ-9 for MMB patients. The investigators now propose a pragmatic randomized clinical trial of MMB to evaluate its effectiveness in reducing RDS in recurrently depressed patients. Patients will be members of Kaiser-Permanente Colorado (N = 460), aged 18 to 75, who score >5 and <9 on the PHQ-9, in remission from MDD and will be randomized 1:1 to either the usual depression care pathway (DepCare) or Mindful Mood Balance (MMB)+DepCare.