One aim of the Portus Project has been to develop and enhance collaborations between academic and other organisations and individuals with an interest in the site and its surroundings. This has involved close collaboration between colleagues at the University of Southampton, the British School at Rome, the Soprintendenza Speciale per i Beni Archeologici di Roma (Ostia Antica), the Soprintendenza Speciale per i Beni Archaeologici di Roma (Roma), the Parc Archelogico di Ostia Antica, and the Duca Sforza Cesarini. Our digital activities at Portus also involve ongoing knowledge exchange. For example, we have a close relationship to L-P: Archaeology having used and developed new functionality for their online archaeological data management system (ARK). These developments have fed into their other commercial and research contracts. The project has also developed a strong link to Microsoft Research (MSR), including development and publication of the first scholarly communications example of Rich Interactive Narratives and a range of other activities around HCI, on-site data capture, interaction between archaeologists and technologies (in partnership with the RCUK DE PATINA project), and in data management infrastructures. There has been further discussion of these collaborations in a feature on the AHRC website (December 2011).