This thesis explores using the open source content management system DotNetNuke (DNN) for the design and implementation of a portal website for the Mobile & Marine Robotic Research Centre (MMRRC) at University of Limerick. This was done in collaboration with the research team in university research centre. Based on plenty of research material accumulated during years of studies, the MMRRC website would be a platform for visitors or interested researchers to learn about the research activities and projects undertaken by MMRRC team at University of Limerick and keep the latest news updated on the website all the time. During this project, there was an exercise in Shannon Estuary which explored a ship undersea and simulate oil leak from the ship. The MMRRC team played significant role in planning and executing the exercise. Video, pictures, as well as real-time data obtained from this exercise were updated on the website. In contrast to traditional websites, this portal website developed with DNN can be easily and conveniently managed by administrators using role-based approach.