I started dozens of the cognitive bias articles that are on wikipedia. That was a long time ago. It seems people like these things, so I started adding them again.
I wanted to write a compendium of biases in book form. I didn’t know how to get a book published, though.
New cognitive bias articles on wikipedia (update)
Conservatism
Curse of knowledge
Duration neglect
Extension neglect
Extrinsic incentives bias
Illusion of external agency
Illusion of validity
Insensitivity to sample size
Lady Macbeth effect
Less-is-better effect
Naïve cynicism
Naïve realism
Reactive devaluation
Rhyme-as-reason effect
Scope neglect
Also conjunction fallacy has been expanded.