Slides for a keynote speech at a workshop on religion and social media at ICSWM in Oxford, 26 May. I argued that the study of the live web has been too far separate from the study of the archived web, and there is much to gain from reuniting them. I also presented preliminary findings from two case studies into the rates of social media adoption by Christian organisations in the UK. More details and resources at https://sites.google.com/site/religiononsocialmedia/