Flickr and the Commons

Flickr was once one of the best places on the internet to find new Creative Commons-licensed photography, but since its takeover by Yahoo!, it is harder to search and to collect attribution for Commons-licensed content. (See this BoingBoing post for more info on how Flickr is broken in this respect.) The "Explore-->the Commons" tab seems…

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Maps in the Public Domain

The very useful Public Domain Sherpa has both a post on how to tell if a map is in the public domain and a list of sources for public domain maps. Wikipedia also maintains a list of public domain map resources. If you need to do a great deal of map data work, another good…