For a quick set of directions it's tough to beat Google Maps, but what if you need to use the map data for publishing or other projects? OpenStreetMap is free, editable, and remix-friendly. All the street data in OpenStreetMap has been created from free sources and user input. You can use the maps for any purpose or publication, and even participate in the expansion and refining of the maps. If you're interested in using OpenStreetMap for more than just copyright-free maps, make sure to check out the wiki. There are detailed entries covering all the ways you can contribute, like uploading GPS waypoints, photographs, and participating in the Wikipedia-style distributed editing to correct errors on the maps. OpenStreetMap is an open-source project, free to use, and only the wiki requires a sign-up to edit.