Please add our mirror to the official list:

HTTP: http://cosmos.cites.illinois.edu/pub/centos/
FTP: ftp://cosmos.cites.illinois.edu/pub/centos/

Sync schedule: Every 6 hrs
Bandwidth: 1 Gbps
Location: US, IL
Sponsor: University of Illinois at Urbana-Champaign
Sponsor URL: http://illinois.edu
IP to authorize: 192.17.174.4
Email contact: cites-cosmos@illinois.edu

Regards,
-ahurt