The company I work for has 2 corporate blogs right now, one penned by the CEO and one that has three separate contributors.  The active blogger of that bunch is very good at tying things back to our business and genuinely seems to enjoy blogging.  He was making a comparison the other day in his post about the final four basketball teams and the four main providers of recruitment process outsourcing (what my company does).  Just before posting he asked me to review his post to make sure it was acceptable from a “corporate” standpoint because it did name our top three competitors.  We went back and forth over the pros and cons and finally I said, “You know, I’m going to use the advice that I’ve seen from Seth Godin.  When in doubt, don’t post the content.”  So he removed the references to the actual competitor names and published the post.  And, as luck would have it, one of our competitors DID comment on his post to say that he enjoyed reading it and that the author made some great observations and comments.  I think Seth’s advice is right on — if something gives you any pause at all, take a pass.  Because once it’s out there, it’s out there for all to read.