The Arthur of the Comics Project, sponsored by the Alliance for the Promotion of Research on the Matter of Britain, is an ongoing effort to compile a comprehensive listing of the representations of the Matter of Britain in the comics medium. The corpus is international in scope and extends as far back as (at least) the 1920s. We welcome your help in achieving our goal, and we also appreciate news on other medieval-themed comics.
I just posted the details of a new comic book series called Unholy Grail on the Monstrous Matter of Britain site. The series is from writer Cullen Bunn and artist Mirko Colak and mashes the Arthurian story with elements from the fiction of H. P. Lovecraft.