This is the home of The Scalatra Book.
The latest version of the book is published to http://www.scalatra.org/2.0/book.
In a shell, run the following:
$ ./sbt
> update
> generate-site
> jetty-run
> ~generate-site
Review changes at http://127.0.0.1:8081
Note: only sbt version 0.7 works at present, so make sure you install and use that if you're having trouble generating the docs.