TCJ.com’s reviews of comics, graphic novels, and other sequential works.
Bibliographies provide useful lists of resources relevant to their subjects.
Many Golden Age comics are now in the public domain. At Golden Age Comics, these works can be downloaded and viewed.
There are a lot of trade-specific words used to describe comics. Comics also happen to be written in a lot of different languages. Pascal Lefévre's handy guide provides a multi-lingual glossary for over one hundred comic-related terms.