**--This answer is of historic interest only and does not reflect current licensing terms--** We request that your credit reads at least "© OpenStreetMap contributors, CC-BY-SA" and suggests that you direct your readers to www.openstreetmap.org and www.creativecommons.org The credit will vary depending on what seems appropriate for your application. If you have a standard place and way to put credit this is normally just fine. Normal place is usually at the end of the image description or a note at the end of the article saying "All maps © OpenStreetMap contributors, CC-BY-SA. See www.openstreetmap.org and www.creativecommons.org for more information and free maps." If the data is largely from a single contributor or an import it is possible to credit them as well as OpenStreetMap contributors. In general there should not be any confusion of who created the map and what license it is.

We request that your credit reads at least "© OpenStreetMap contributors, CC-BY-SA" and suggests that you direct your readers to www.openstreetmap.org and www.creativecommons.org The credit will vary depending on what seems appropriate for your application. If you have a standard place and way to put credit this is normally just fine. Normal place is usually at the end of the image description or a note at the end of the article saying "All maps © OpenStreetMap contributors, CC-BY-SA. See www.openstreetmap.org and www.creativecommons.org for more information and free maps." If the data is largely from a single contributor or an import it is possible to credit them as well as OpenStreetMap contributors. In general there should not be any confusion of who created the map and what license it is.