Neighborhood Association Boundaries have been traced for all seven of Portland's Neighborhood Coalitions and all 95 neighborhood associations.  Also available are Milwaukie, Beaverton and Gresham.  Other cities will be coming.  Those that purchase the all-inclusive zip file will be subscribed to free updates for life.  These files represent months of research and tracing (mostly tracing).  All polygons were very meticulously drawn down to the property line level to create as few gaps as possible.  Data is current as of February 2011 and will be updated as new information comes available.