OpenStreetMap Projects
What is OpenStreetMap?
OpenStreetMap is a collaborative, free map of the world. The data behind the map either comes from contributors' GPS tracks or from public domain data. The map above is displaying OpenStreetMap as rendered by Mapnik.
If you're interested, you can sign up for an account and begin updating this map.
ArcGIS Export to .osm
I wrote a python script that exports a line or polygon feature class to the .osm XML format used by JOSM. I used it to export features for Rowan University (see map above) and am in the process of taking public data currently in shapefiles or geodatabases and adding it to OpenStreetMap.
• ExportToOSM.py (python 6kb)
I release this code under the Creative Commons Attribution-Noncommercial-Share Alike license. Use at your own risk. I welcome any and all feedback.
Collaboration
I go by johnjreiser on OSM. You can see what I've added or updated here. Here's what I've edited on the OSM wiki. If you're interested in collaborating on a mapping project with me, please let me know.