1000 [Indigenous] Languages on the Web(indigenoustweets.blogspot.com)
indigenoustweets.blogspot.com
1000 [Indigenous] Languages on the Web
http://indigenoustweets.blogspot.com/2011/12/1000-languages-on-web.html
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Of note is that Kevin has put the data on GitHub (https://github.com/kscanne/orthotree) so that others can make their own visualizations. He offers some suggestions near the end of the post.