OpenStreetMap (OSM) was founded in July 2004 by Steve Coast. OpenStreetMap data is published under an open content license, with the intention of promoting free use and re-distribution of the data (both commercial and non-commercial). Map data are usually collected using a GPS unit, although this isn't strictly necessary if an area has already been traced from satellite imagery. Once the data have been collected, they are entered into the database by uploading it on the project's website. As collecting and uploading data is separated from editing objects, contribution to the project is possible also without using a GPS unit.
Create and update maps, upload GPS tacks, extract files to use them on GIS softwares
creation and editing of geographical information online, or from GIS data collected in the field; search of locations and places
Not suitable for:
events data mapping or offline editing
Technical expertise needed:
The system is free, both for downloading data or for usage online