http://www.boost.org/more/mailing_lists.htm Boost.Spirit lists Spirit has two additional mailing lists. Spirit-general for Spirit users and Spirit-devel for Spirit developers (open to anyone who wishes to hang out with Spirit coders). Both have GMane NNTP access (Spirit-general and Spirit-devel) with searchable archives ( Spirit-general and Spirit-devel). ^^^^^^^^^^^^^^ Both the searchable archives point to gmane.comp.parsers.spirit.devel Incidentally, when I go to the first 'Spirit-general' link: https://lists.sourceforge.net/lists/listinfo/spirit-general and click on To see the collection of prior postings to the list, visit the Spirit-general Archives. I get: ERROR Either your mailing list name was misspelled or your mailing list has not been archived yet. If this list has just been created, please retry in 2-4 hours Regards, Angus