Every time I tell someone about OpenStreetMap, they inevitably ask “Why not use Google Maps?”. From a practical standpoint, it’s a reasonable question, but ultimately this is not just a matter of practicality, but of what kind of society we want to live in. I discussed this topic in a 2008 talk on OpenStreetMap I gave at the first MappingDC meeting. Here are many of same concepts, but expanded.
Read the full thing at http://blog.emacsen.net/blog/2014/01/04/why-the-world-needs-openstreetmap/