There was an interesting note in a recent fedoraproject.org newsletter regarding Redhat's legal views on referring to others' trademarks. Since the comments are lengthy, they are not reproduced here and are available at the links below. FWN/Issue161: http://fedoraproject.org/wiki/FWN/Issue161#Legal Callaway note: http://www.redhat.com/archives/fedora-devel-announce/2009-January/msg00012.html Fedora Packaging Guidelines: https://fedoraproject.org/wiki/Packaging:Guidelines#Trademarks_in_Summary_or_Description Although they are really talking about non-Redhat trademarks, the points are equally applicable to the Redhat trademarks and related issues as might (or might not) be used in CentOS documentation. Those comments make interesting food-for-thought with regard to the off and on discussions on how to or how not to (or how if-at-all to) refer to Redhat in CentOS documentation. Steve