Sun Microsystems CEO Jonathan Schwartz: "Our blogging policy is 'Be authentic. Period.'" (It's been awhile since I was showing up bright eyed and bushy tailed for Larry Sonsini's Securities Regs class in law school, but I'd be willing to bet Sun's securities lawyers might want a qualifier or two.)

Summer camps, with camper identities to protect and other considerations, might understandably go a different route. That article also highlights, and Dennis pointed out (by pointing here) on our mailing list, the camps' attempts to police bloggy uses of their trademarks. I'll have to defer to Marty on this but what they're concerned about sounds like nominative fair use.