I was surprised to find an organized group on Linux around here. They meet on the 3rd Thursday each month at the meeting room off the lunch room at Franciscan Skemp Hospital. I found many of them to be pretty knowledgeable on the little details that make Linux really work well. Many of them use it at work and keep up with the latest developments. Most like and use Ubuntu. Personally I have Linux Mint. It works best my AcerAspireOne (second gen).
Here is the group:

http://groups.google.com/group/lacrosselug/web/about-lclug?pli=1