We seek to determine if patient data entry, data entered based alerts, and data review in a secure patient portal may provide a sustainable approach to improve diabetic outcomes in a cost effective manner. We plan to study the extent to which the portal can improve diabetic outcomes and quality of care. We recognize, however, that some patients will be more predisposed to adopting technology and some will be more predisposed to improving their compliance than others. Hence, we will also develop and test interventions that may improve adoption and compliance. The goals of the proposed study are: 1) to assess whether a web portal will improve care outcomes in diabetic patients; 2a) to describe the characteristics of patients whose health behavior improves over the study period; 2b) to describe the characteristics of patients who adopt the web portal-based disease management technology; 3) to develop and test targeted interventions to increase the adoption of the web portal and improve patient health behavior; and 4) to monitor the ongoing costs associated with the web portal and patient healthcare resource utilization, and to monitor the incremental costs of the interventions designed to improve utilization of the technology and patient compliance with their diabetic regimens.