Linux User Groups
Linux User Groups or LUGs are groups of linux users unsurprisingly 
More specifically they form a major part of the community of linux users because they allow you to get in touch with other users who are local to you.
To read more about LUGs in general have a look at http://www.lug.org.uk/
Please note that these pages are based in the UK and therefore are UK-centric really. Surprise, surprise.
There are some specific LUGs that have produced some pages on this wiki: