The Skeptic's Dictionary

An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural – James Randi book

Critical thinking – Analysis of facts to form a judgment

FactCheck.org – Fact-checking website

Freethought – Position that beliefs should be formed only on the basis of logic, reason, and empiricism

Pseudoscience – Unscientific claims that are wrongly presented as scientific

Scientific skepticism – Modern social movement based on the idea of scientific skepticism

Skeptical Inquirer – Magazine published by CSI

Skepticism – Questioning attitude or doubt towards one or more items of putative knowledge or belief

Skeptic (US magazine)

List of books about skepticism – Wikipedia list article

The Skeptic (UK magazine)

The Straight Dope – Column published in the Chicago Reader

List of common misconceptions