Where do low-income residents tend to live together the most? (As well as high-income residents.) Er, San Antonio and Memphis.

[youtube http://www.youtube.com/watch?v=MwN-52vbB9Q&w=600&h=315]

Cities have become increasingly economically segregated in the last decade or so, according to various studies (for example, this one). There's been some pretty substantial discussions about this and what it all means across the Internet by people far more intelligent than I could ever hope…