listened to doug saunders being interviewed by Matt Galloway on the CBC metro morning podcast today, about his new book, Arrival City.  i wish i'm in canada right now so that i can pick one up!  (the book is not available in the US until next year.)   in the interview, saunders talked about how Toronto, as a city of neighbourhoods made of ethnic enclaves - little italy, koreatown, etc etc - is a successful model of a stable city of migrants which should serve as an example to the rest of the world. 
all this is incredibly timely for me, as i'm currently finishing my master's thesis on San Francisco's Japantown, and working with Prof. Michel Laguerre on his theories of the Global Ethnopolis.  reading-wishlisted.