In the Netherlands there are two large beerunions.
They keep me informed of the beernews in the Netherlands. I write for the BAV, the collectors unions and was for 5 year a member of the board from Pint Noord.
"Vereniging van Bier Artikel Verzamelaars"
is the only beercollecters union in the Netherlands with about 2500 members.
For your about 16 euro contribution you get the BAV-journal 6 times a year, it contains lots of info about the dutch beermarket and the smaller dutch breweries in particular.
In the year 2008 the BAV was celebrating the 25e anniversary with special activities for there members.
Also there is Pint. The Union Promotion INformation Traditional Beer (PINT) was grounded on 14 october 1980 to promote the Dutch beerculture. In those days there were just a few (only big) breweries left
Since spring 2003 there is a Region North Netherlands active in the states Groningen, Frisia en Drente. More at the special homepage: https://www.pint.nl/noord/.