See also:

• Games: Video Games: Adventure: Graphical Adventures: Callahan's Crosstime Saloon  (6)

• Spider Robinson   - Spider's official site with weblog, details of upcoming appearances, biography, and new and existing novels.

• Callahanians - Callahan's WIKI is loosely based on the Callahan's Crosstime Saloon series of novels by Spider Robinson.
• January Magazine - Spider Robinson - Interview with the author includes his thoughts about his books, space exploration, Dan Quayle, and Usenet.
• Lifehouse - Spider Robinson Book Review - Plot analysis, setting, characters, theme, and structure of some of his novels, and links to similar works by other novelists.
• Rah, Rah, Rah - Spider's 1980 answer to the critics of Robert A. Heinlein.
• The Semi-Official All-Callahanian Web Page - Information about the author and about Callahan's Place.