Wiki-Wednesdays are open to anyone interested in OpenStreetMap--the open source, online map of the world--and becoming an "Armchair Mapper." Armchair Mappers are addicted (like me) to just jumping on OpenStreetMap and editing the map from their memory and specific knowledge of particular places. Since there are no restrictions on the map data in OpenStreetMap and is governed by a Creative Commons license, there's no limit to what you and I can do with the map! (Currently I'm drawing all the buildings in the pearl into the map)
The days of the couch potato are over!
Official Website: http://wiki.openstreetmap.org/wiki/Portland