Douban.com is a famous book database in China, containing almost book data in Chinese and some in English.
This provider has dependencies to ruby json module.

Developed and tested on the trunk version.

Date: 2010-05-01 00:48
Sender: Cathal Mc Ginley

Thanks for this provider, it works great. I just made a
few changes.

1) removed some stray : characters from for and if statements,
that's your Python programming background showing :^)

2) I managed to do a quick-and-dirty json-to-yaml transform so
that the YAML library in Ruby 1.8.6 can read the incoming JSON
as YAML. That way, we won't need the extra 'json' dependency.

Added in SVN r1138. Should make the 0.6.6 release, which I'm
*finally* putting out soon.

Date: 2010-04-30 10:26
Sender: Sun Ning

And the patch for bookproviders.rb