Publish books online with Writebook — the latest product from 37signals

Nowhere in the instructions is written that I need Ruby on Rails in order to run this app. For sure I should have guessed that. But really thought that you managed to do it somehow to be used on a shared hosting.

I think you should write in the instructions that the app needs Ruby on Rails hosting in order to run.

How much ram does it require? Is it 2GB like campfire?

you didnt link to it