newbie q's about groups: indexing and member services

Hi folks,

Plone newbie here, and having read through much
documentation am still
struggling with a couple of basic CMS points. Any links to
articles I
should read etc much appreciated.

The first main one is around groups and indexing. I'd like
to use some
form of sub-community on the site for 'expert groups', where
membership
is restricted to e.g. 'Plone Experts', and is thus a
controlled source
of eg relevant blogs, news, offers an RSS feed, is a menu
option for
content navigation, has its own banner homepage etc., and
ideally has
some private project tools like an email discussion list,
'plone-expertsdomain.com', and so on. 

Firstly, I see there is a number of Group/Project tools
(GRUF, b-org
etc.) and am wondering if one of these is the best option,
and secondly
I'd like them to operate as a form of content indexing. An
author writes
a blog 'Best hosting for Plone', which is thus relevant to
'Plone
experts' but also 'Hosting services', a different expert
group they are
also a member of. They should be able to 'index' the article
with
membership to both of these groups so that it appears in
each.

Lastly, I'd ideally like this to enable services
permissions. Ie
Bloggers is also an expert group, and you have to be a
member to have
access to post blogs.

Many thanks in advance for any advice on different
approaches for how to
achieve this model, or closest to it..

Regards, Neil.


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