RE: [Rails] Where are directories

Your web app generally maps to the Rails public folder.

http://youapp.com/images/image1.jpg =>
/railsappname/public/images/image1.jpg

You can make absolute references to your images using
/images/image_name.gif from your views. This also applies to
JavaScripts and stylesheets, which map to /javascripts and /stylesheets
respectively. Of course you can use relative references, but I've found
the safest bet to be absolute.