There are gatherings every so often thru DiaperfreeBaby... check out diaperfreebaby.org  or their forum directly at:  http://www.diaperfreebabyonline.org/ and get on the online forum for Massachusetts
There are other online things, like chats: Â http://www.diaperfreebaby.org/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=143
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I was involved in the group when I was closer to Boston and my son was an infant and their were meetings and I occasionally still hear about meetups from time to time. Â
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And  there is an EC forum around on MDC, too.
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Good luck! Â Jessica