YASIV

Yasiv tool - http://blog.yasiv.com/

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Visualizing communities of reddit.com 

How exactly does it work?

I get information about all subreddits (communities) from reddit.com/reddits and store it in Google App Engine. 

yasiv for facebook: 

http://www.yasiv.com/facebook


http://www.yasiv.com/youtube#/Search?q=zappa