"Q: When we spoke several months ago you were considering a move from Red Hat to a free binary clone of RHEL (Red Hat Enterprise Linux) like CentOS. Are you still going forward with that, and if so, why?
"A: Yes. We've been using Red Hat 7.3 for five years on about three dozen production servers, but now we are migrating to CentOS 5. We have a large commercial Web site serving tens of millions of page views per month and generating a lot of advertising revenue for our company..."