All right, let it be Ireland we use then, sorry teh improper "Eire".
(Bad habits I've taken dealing with french Canadians, some of whom go mad when you refer to their bit of land as Canada instead of Québec and to them as Canadiens instead of Québécois. <!-- s:wink: --><img src="{SMILIES_PATH}/icon_wink.gif" alt="

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2 to 5 years i mentioned not because it's anawful lot of work, but to put together gradually a healthy dynamics. Some of the smaller contiental beer consumer groups work on a rather informal basis, only CAMRA and DBE have permanent offices.
Newsletter : indeed, one would be needed, but it can be a simple thing, of 4 or 8 pages for a start,, maisnly distributed as .PDF; with hard copies for the non-connected members and as a means of information in bars etc.
As Terry said, there are different ways to think up a beer consumer organisation, and the one that suits best your needs and group dynamics is the one to use, event if it remains light and flexible, even if it remains largely web-based.
Cheers !
Laurent