Mick West at Metabunk.org has published a book! It's called "Escaping the Rabbit Hole: How to Debunk Conspiracy Theories Using Facts, Logic, and Respect." The early reviews at Amazon.com are brutal.
I publish a fair-use excerpt from the introduction to the book published last month at Salon: How to pull a friend out of the conspiracy theory rabbit hole | It’s not a blue pill or a red pill, but a poison pill
I've added highlights to parts of the excerpt that might be helpful to OLers struggling with the entailments of conspiracy-ideation --in friends, family, and perhaps in themselves