You can check our group page in SourceForge.net for releases, mailing list, to become a developer, or to take a survey. Everything else is in a swiki
We used to have a page at squeakpeople.org, but the site is down, forever down. Here I'm publishing the 3 articles we wrote in 2006. Hopefully this will not be their last residence, or at least we'll make them nicer, but in the meantime, here they are: