Study design and methods: In this Prospective observational cohort study the investigators examine the effect of the voluntarily use of a web portal and its educational content. The primary end point is health related quality of life. We predefined a clinically relevant difference of 0.074 in the EQ-5D index score. Secondary endpoints are diabetes-related distress and well being and a selection of clinical measurements, number of contacts with health care provider and the amount of prescribed medication. The participants are being followed for 1-year and the data will be collected at baseline, after 6 months and 12 months.