Seattle Area and Pacific NW GIS user groups

Cacadia Users of Geospatial Open Source - Discussion Group"
CUGOS aims to facilitate general support and regional meetings for people who are interested in Open Source GIS software"

Northwest WA GIS Users Group
The NWGIS is a group of individuals who meet every three months to discuss their activities with Geographical Information Systems and to hear from others working in this field about their interests, activities and concerns.

Central Puget Sound GIS Users - email list

Kitsap GIS Tech Group - send email to Tom Curley to subscribe to email list