The best newsgroup for Fuzzy Logic is comp.ai.fuzzy, but this moniker perpetuates the stereotype that Fuzzy Logic is contained within the domain of Artificial Intelligence.

There's a fuzzy-logic.com that provides some "Jump Start Publications", including Fuzzy Logic for 'Just Plain Folks' by Thomas Sowell.

Here's a good link: A Home Control System Based on Fuzzy Logic

The North American Fuzzy Information Processing Society supports research and technology transfer pertaining to Fuzzy Sets.

One of the best acronyms we've seen: EUSFLAT, the European Society for Fuzzy Logic and Technology.

The International Fuzzy Systems Association.

The Berkeley Initiative in Soft Computing.

The Japan Society for Fuzzy Theory and intelligent
informatics (in English and Japanese).

The IEEE organizes a Technical Committee on Fuzzy Systems as a part of its Computational Intelligence Society.

ANNIE (Artificial Neural Networks in Engineering) at University of Missouri http://web.umr.edu/~annie/ has a yearly conference, with Fuzzy Logic, Fuzzy Modeling, and Fuzzy Evolutionary Computing as topics.

aiGuru by Michael Zarozinski has some useful links and terminology.

Earl Cox Reports features the work of Earl Cox, an international authority on fuzzy logic systems.