Changes

==Geo-Visualization==

While there are a large collection of geo-visualization tools available on github, I have listed here several collections that stand out in terms of:

*'''Flexibility'''

<blockquote>"To make this map, Tweets are grouped by user and sorted into locals—who post in one city for one consecutive month—and tourists—whose tweets are center in another city. Relatively inactive users simply don’t appear on the map, since we can’t confidently determine their group."</blockquote>

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