I think it would be useful for the newcomers if the list is directly visible in the community page (otherwise I imagine some of them won't dig in "specific sub project" and "special interest lists"):

http://squeak.org/Community/

For the moment:

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Community

Squeak has an active and enthusiastic user community. Participants include teachers working on curriculum materials, commercial and academic users, and a number of "quantum mechanics" interested in newer and better approaches to the ultimate goal of making high-quality computation simple and efficient.

If you want to join this vibrant community a good place to start is to read the Community How-To.

Mailing lists

There are a number of Squeak sub-projects that can be found here:

There is also other web and news access to Squeak and Squeak related lists: