This report describes the structure of the SIENNA website, the visual identity of the project, and the process used to develop content for the SIENNA website. It describes the website’s role in SIENNA communications, serving as the main point of contact for the project, with a structure that allows the consortium to tailor communication for different target audiences as the project progresses. This report also describes the first steps towards developing a communications and dissemination strategy for SIENNA. It precedes the communication strategy and plan, which will be delivered by 31 December, 2017. Hence, some of the content of this report is to be considered interim in relation to the SIENNA Communication and Dissemination Plan (D7.3).