Belfast Linux Users Group.
A bunch of
Linux enthusiasts who meet up to discuss Linux, and to educate and help out users. One of their aims is to promote the use of
GNU/Linux in Belfast, and
Northern Ireland as a whole.
Its website can be found at http://www.belfastlinux
.cx/
BLUG.org is owned by the Bellingham
LUG, Washington State.
Update, 05 December 2000: http://www.belfastlinux.org/ will get you where you want to be now too.