Call it serendipity: I was poking around looking at something else, and somehow I stumbled on the Coconino Classics website, a stunning treasure trove of early comics. The site includes beautifully designed sub-sites for a number of artists, including Krazy Kat creator George Herriman and Little Nemo creator Winsor McKay, that feature biographies, bibliographies, and generous samples of their work. Artists from the pre-history of comics, such as Hokusai, George Cruickshank and Rodolphe Töpffer, and more recent creators such as Rube Goldberg and George McManus get more modest pages that still include digitized versions of their work and the occasional article by comics scholar Thierry Smolderen.
It's all part of a larger site, Coconino World, that features contemporary as well as classic comics. It's a French-language site, but much of the text is translated into English, and of course the comics are in their original languages.