This project will address vital questions regarding how best to design web-based materials for the growing population of patients with basic literacy and computer skills but lower levels of health literacy, building on our previous experience of developing web-based materials for people with lower levels of literacy and health literacy.

This study will be carried out two phases. Phase 1 will use qualitative methods to understand user experiences of the web-based materials through observational 'think-aloud' interviews with users. Phase 2 will test the newly developed web-based materials to a static (non-interactive) version of the materials online.

Inclusion Criteria:

• Potential participants are patients with Type 2 diabetes aged 18 years or more, who are able to consent.

Exclusion Criteria:

• Severe mental health problems, palliative care, recent bereavement, known opposition to involvement in research or inability to complete research measures, e.g. learning disability, inability to read / speak English.