This should be a feature of hacker news, have a books link at the top menu where you can submit a book and a deadline, then people can commit to reading it, and then everybody can discuss. Upmod if you're committing, then the top few books will generally get a following and a good discussion going.
I guess you could do something like kill all books without more than 20 committed readers or something like that to eliminate the noise.
I guess you could do something like kill all books without more than 20 committed readers or something like that to eliminate the noise.