Companion sites of books on online communities or sites with a comprehensive reviews of a book on the subject.
This category''s goal is to be a comprehensive book list on online communities.

This category invariably accepts the official companion sites of books focusing on online communities. If there is no companion site, this category will list the most comprehensive book review.

We allow only one listing per book, and affiliate codes, gateways and affiliate sites are not accepted. If the submission is part of an already-listed site, we use editor discretion whether to accept the submission.