Corpus Vitrearum Medii Aevi – Medieval Stained Glass in Great Britain
This is the principal site for Medieval stained glass in Great Britain. The site includes an extensive picture archive (organized according to monument and county), access to publications, information on conservation, a useful glossary that is specific to stained glass, a bibliography of relevant sources, and a list of pertinent links.
An online magazine devoted exclusively to Medieval stained glass, Vidimus presents monthly editions that include a feature article, a detailed examination of a single panel of glass, and reports on related exhibitions and events. Subscription is free.