To play with this experiment, use any of the below options as a mirror.
Debian
http://shard.acm.jhu.edu/debian
http://shard.acm.jhu.edu/debian-security
Fedora
http://shard.acm.jhu.edu/fedora
(e.g. http://shard.acm.jhu.edu/fedora/linux/releases/$releasever/$basearch/os/Fedora or similar)
Minix
http://shard.acm.jhu.edu/minix
Ubuntu
http://shard.acm.jhu.edu/ubuntu
http://shard.acm.jhu.edu/ubuntu-security
http://shard.acm.jhu.edu/ubuntu-ddebs
Wine APT
http://shard.acm.jhu.edu/wine