These links all work now:
http://cloud.fedoraproject.org/fedora-19.x86_64.qcow2
http://cloud.fedoraproject.org/fedora-19.i386.qcow2
http://cloud.fedoraproject.org/fedora-latest.i386.qcow2
http://cloud.fedoraproject.org/fedora-latest.x86_64.qcow2
(They will redirect to a mirror link provided by mirrormanager.)