I went for a longer than anticipated hike 8+ miles then added the trails to OSM. The new Id editor is great! Drag and drop gpx files! Very good.

Thanks mapjunkie and cvo-osgis for inspiration.

This USGS link works as an imagery source for Oregon in JOSM

http://isse.cr.usgs.gov/ArcGIS/services/Combined/SDDS_Imagery/MapServer/WMSServer?request=getmap&version=1.1.1&format=image/png&srs=EPSG:4326&layers=0&styles=default&

It is listed as "public domain",

I'm getting my feet wet by adding poi's and updating some streets here in Corvallis.