The online peer-reviewed e-journal Internet Archaeology has been publishing archaeological research on the web since 1996. Rich text and image databases allow readers to ‘drill down’ from the text and to test existing interpretations and to make new ones. Increasingly we have also used web-based GIS to allow archaeologists to provide full interactive access to the spatial dimension of their research. This presentation will use exemplars developed under the AHRC and Mellon Foundation funded LEAP projects (http://ads.ahds.ac.uk/project/leap/) to discuss the potential and challenges of this approach.