The Economist has a story on the decline, and partial resuscitation, of book clubs, with a focus on Europe and America:
There is one kind of book club which could have a bright future: specialist clubs that harness the internet. Two successful new clubs in recent years have been Bertelsmann’s Black Expressions in America, aimed at black women, and Mosaico, a Spanish-language club. For specialist titles, bookstores cannot compete for range with a book club, and the internet lacks the personal touch of a trusted team of editors.