http://www.hackerbooks.com/book/learning-python-3rd-edition/0596513984 http://www.hackerbooks.com/book/learning-python-3rd-edition/... http://bibliotechnical.c

http://www.hackerbooks.com/book/learning-python-3rd-edition/0596513984 http://www.hackerbooks.com/book/learning-python-3rd-edition/... http://bibliotechnical.com/books/learning-python http://bibliotechnical.com/books/learning-python I made the latter; the problem I ran into was generating quality reviews and related information. I found it was going to take a lot of manual curation to get good results. HN is also a tough crowd for this kind of project, I think you would be more profitable trying to optimize for people searching for 'java book' instead of those looking for the 'best java book given that I know how to program and know these other languages'.