Software
Here are some places you can obtain map-making software:
- QGIS is the leading open-source spatial analysis & cartography package.
- The OpenGeo Suite is a bundle of open-source geospatial software. Includes QGIS.
- JOSM is a cross-platform OpenStreetMap editor. Java required. Tutorial and guide.
- Mapbox Studio and TileMill can help you make online web maps.