One that I've been using for several years now The Nizkor Project. This is a fine site that deals with logical fallacies of many kinds. Nizkor project is dedicted to the Holocaust victims and is apparently ran by some Jewish group (although that doesn't' necessarily follow). I was under the impression that it's a group of Lawyers. They use a Tutorial done for Macintosh.
Dr. Michael C. Labossiere, the author of a Macintosh tutorial named Fallacy Tutorial Pro 3.0, has kindly agreed to allow the text of his work to appear on the Nizkor site, as a Nizkor Feature. It remains © Copyright 1995 Michael C. Labossiere, with distribution restrictions -- please see our copyright notice. If you have questions or comments about this work, please direct them both to the Nizkor webmasters (firstname.lastname@example.org) and to Dr. Labossiere (email@example.com).Their list of fallacies:
- Ad Hominem
- Ad Hominem Tu Quoque
- Appeal to Authority
- Appeal to Belief
- Appeal to Common Practice
- Appeal to Consequences of a Belief
- Appeal to Emotion
- Appeal to Fear
- Appeal to Flattery
- Appeal to Novelty
- Appeal to Pity
- Appeal to Popularity
- Appeal to Ridicule
- Appeal to Spite
- Appeal to Tradition
- Begging the Question
- Biased Sample
- Burden of Proof
- Circumstantial Ad Hominem
- Confusing Cause and Effect
- False Dilemma
- Gambler's Fallacy
- Genetic Fallacy
- Guilt By Association
- Hasty Generalization
- Ignoring A Common Cause
- Middle Ground
- Misleading Vividness
- Personal Attack
- Poisoning the Well
- Post Hoc
- Questionable Cause
- Red Herring
- Relativist Fallacy
- Slippery Slope
- Special Pleading
- Straw Man
- Two Wrongs Make A Right
this one uses several other sources in its data base as well:
There's a fallacy site called "logical Fallacies" put up by the trade school "Capella University online."
I don't like the way they deal with Pascals Wager but can't have everything.
There are other online sources I find these two are very good. Of course the major knowledge is still in books. Reading about logic in general is very helpful. One of the major logicians in America (long dead but still important to read) is C.I. Lewis (not to be confused with C.S. Lewis--atheists have in past thought I was trying to speak of the latter not the former).
Clarence Irving (C.I.) Lewis was perhaps the most important American academic philosopher active in the 1930s and 1940s. He made major contributions in epistemology and logic, and, to a lesser degree, ethics. Lewis was also a key figure in the rise of analytic philosophy in the United States, both through the development and influence of his own writings and through his influence, direct and indirect, on graduate students at Harvard, including some of the leading analytic philosophers of the last half of the 20th century.
a books by Lewis:
- Lewis, C.I. 1918. A Survey of Symbolic Logic Berkeley: University of California Press. Reprinted by Dover Publications (New York), 1960, with the omission of Chapters 5-6.
- Lewis, C.I. 1923, “A Pragmatic Conception of the A Priori”. Journal of Philosophy 20, pp. 169-77. Reprinted in Lewis (1970, pp. 231-239.
- Lewis, C.I. 1929. Mind and the World Order: Outline of a Theory of Knowledge. New York: Charles Scribners. Reprinted by Dover Publications (New York), 1956.
- Lewis, C.I. 1932. “Alternative Systems of Logic”. The Monist 42: pp. 481-507. Reprinted in Lewis (1970), pp. 400-419.
- Lewis, C.I. 1936. “Verification and the Types of Truth”. Unpublished. Reprinted in Lewis (1970), pp. 277-293.
- Lewis, C.I. 1941. “Logical Positivism and Pragmatism”. Not published in Revue Internationale de Philosophie due to German invasion of Belgium. Reprinted in Lews (1970), pp. 92-112.
- Lewis, C.I. 1946. An Analysis of Knowledge and Valuation . La Salle, Illinois: Open Court.
- Lewis (1948), “Professor Chisholm and Empiricism”, Journal of Philosophy 45: 517-24. Reprinted in Lewis (1970), pp. 317-23.
- Lewis, C.I. 1952a. “The Given Element in Empirical Knowledge”. Philosophical Review 61: 168-75. Reprinted in Lewis (1970), pp. 324-31.
Of course Anthony Flew's Philosphical Dictinoary
Most helpful of all An actual Online Copy of Same!
You can look up fallacies in Flew's dictionary and it's one of the most authoritative sources. It's also great for reading through about philosophy in general.
these are just a small sample of what can be found on the net dealing with Logic.