Beginners Guide 1.1.2
Tracing aerial imagery
OSM users have been given permission to trace aerial imagery from a number of sources. The most widely used imagery comes from Bing, but other imagery is available in some parts of the world; you can choose a source from the ‘Background’ or ‘Imagery’ menu of your editor.
Sometimes photographs are displaced away from the real position of the features that are photographed↙. You should check that the roads in the photograph are aligned with the GPS tracks that people have contributed to OSM and move the background if you need to. We will cover this topic in next section.
Remember that things may have changed since the photographs were taken; we are trying to map what is there now and not when the photographs were taken↙.
Bing Images are enabled by default in the ID editor, and can be easily enabled in JOSM.