I recently tweaked the code for OmniNerd.com to upgrade it from a Rails 2.3 app to a Rails 3.1 app. Online docs got me through everything but one item: symbolic links to folder of images (or assets in general). On OmniNerd, users can upload images. The site also auto-generates a lot of graphical content. Our setup is like many, i.e., we deploy with Capistrano and use the shared folder to hold static user content that gets handed off between deployments. We previously simply had a symlink setup such that:
/path/to/app/current/public/images/content --> /path/to/app/shared/user_uploaded