http://www.directionsmag.com/article.php?article_id=3305
In addition, with the emergence of OpenStreetMap and other local free data sources, the primary question is, "Why should I license commercial data when free data is available?"
OpenStreetMap
http://www.directionsmag.com/article.php?article_id=3305
In addition, with the emergence of OpenStreetMap and other local free data sources, the primary question is, "Why should I license commercial data when free data is available?"
讨论
DanHomerick 于 2009年10月22日 23:55 的评论
I suppose that any publicity is good publicity. Pity that the article isn't about OSM, really, just about how commercial datasets can be worth their (non-free) cost.