I really like the tutorial format of
Objectify (thanks Jeff) -
http://code.google.com/p/objectify-appengine/wiki/IntroductionToObjectify
and
Play! - http://www.playframework.org/documentation/1.2.4/home
But there are different goals in documentation. Both of those
examples are great because they help get you up to speed and show you
exactly how to use it. Some documentation (actually far too much)
goes into excruciating detail and give you code snippits that don't
even compile and no idea of how to tie it altogether. Full working
downloadable examples with lots of comments are awesome (especially
self-contained ones that don't use maven!).