Any project for study?

Is there any project which was recommende for reading it’s source for
studing rails?

such as typo ?

cap wrote:

Is there any project which was recommende for reading it’s source for
studing rails?

such as typo ?
Typo?

http://wiki.rubyonrails.org/rails/pages/OpenSourceProjects

Joey__
http://www.feedreed.com