I am active in the Washington, DC area through our local mapping group,MappingDC. I mostly map in and around Arlington County, VA though I am also active in North Carolina from time to time. I use a Garmin GPSMaps 60CSX to capture hyperlocal features that may be useful at a neighborhood or community level. I also focus on collecting bike and foot paths in parks and natural areas.
My profile on the OSM main site is here.