I like where you're going with this Martijn. Spurred on by your concrete examples, how about this: every wiki page has an email address and functions as a "mailing list". Eg: I could subscribe or send edits to ZWikiWeb:FrontPageNews@joyful.com StructuredTextWiki:CurrentStatus@dev.zope.org ProposalsWiki@dev.zope.org (defaults to the front page) A zwikiweb could be seen as a hierarchy of very lightweight mail lists. When I subscribe to a page(list), I would also receive edits(mail) to its child pages(lists) by default. Implementation: a sufficiently smart mail server, or (better?) build on the "mail into zope" project for an all-zope solution. Eg: I might install and configure the "ZWikiMail" product, and suddenly my existing wikis are mail-enabled.. Comments ? -Simon