Bloggage update: Two year review of a personal project that shows what free map data to hang sketch maps on, and a little tinkering to add historic wealth data, can achieve to illustrate almost 1000 yrs of geo-economics. Three key elements are: a) a geographic unit that stays constant, b) people who indefatigably document and update such important information, and c) ground truthing i.e. knowing & QCíng the data in order to put information in context.
I recently had to work with some geological maps. Although I'm not a geologist, I enjoyed their visual appeal -- who knew science could be this pretty? Here are a few samples of particularly handsome maps, along with a simple explanation of what they represent.
I wasn't available to share the recent geonews in batch mode last Friday, so there you go!
On the Google front:
On the Microsoft front:
On the open source / data front:
On the ESRI front:
In the miscellaneous category:
In the maps category: