Map based zip code study for Atlanta area

[Zach Liu]

I did some tentative exploration for zip codes in Atlanta area, and here is an article presenting some results in maps. I would like to keep this type of research going and improve based on it, so if there's any suggestion, please let me know:)

Here is the link to the article:

http://www.biggerpockets.com/blogs/6537/blog_posts/44400-map-based-atlanta-zip-code-study