Hello, The homepage for the package media-gfx/sane-backends is no longer http://www.mostang.com/sane/. It is now hosted at http://www.sane-project.org/. This should have been fixed by this bug: http://bugs.gentoo.org/show_bug.cgi?id=35208 But my up-to-date Portage tree only shows the correct homepage for sane-frontends.
it's been fixed