Juliette Culver and I are currently reworking the paper I presented at the Ascilite conferencelast year into a journal article. Whereas the Computers and Education paper we have just published concentrated on the design decisions we have made to date, vialis 40mg this paper describes the theoretical underpinnings to the development of the site. It has been interesting reworking the Ascilite conference paper in the light of all the major changes we have made to the site. I am pleased (and relieved!) to see that our theoretical basis still stands and is proving to be a really useful guide for ongoing activities around the site - both in terms of technical developments and actual use and evaluation of the site. A draft of the paper can be found here.