The Hitchhiker's Guide to the Galaxy
E-text of the novel.
The Hitchhiker's Guide to the Galaxy
http://www.bbc.co.uk/cult/hitchhikers/
A now-archived fansite from BBC.
35 Things We Learned From The Hitchhiker's Guide to the Galaxy
http://time.com/3490758/hitchhikers-guide-galaxy/
A fun list of things readers know from the books.
10 'Hitchhiker's Guide' References in Pop Culture
http://www.bbcamerica.com/anglophenia/2016/07/10-hitchhikers-guide-references-in-pop-culture