I just got a case to work on in which the client wrote a comment on a website about a bad experience he or she (keeping this vague on purpose) had with a particular business establishment.  The client got an e-mail from the blog, which forwarded a threatening letter from an attorney, who claimed the posting had caused the business establishment to suffere all sorts of damage.  The e-mail contained an ultimatum demanding that the post be removed, and then once it was removed the attorney would be willing to talk settlement. 

I looked this attorney up on the internet, and sure enough there was a posting about a previous incident involving this same attorney who not only convinced a poster to remove a post, but also to make a monetary settlement.

There is a lot of law about defamation and the internet.  A whole lot.  I am not going to try to explain the nuances, because I am not really qualified to do so, and you guys shouldn't rely on anything I say anyway.  My advice is to use caution and prudence.  The first amendment protects the expression of opinion.  Saying something is just your opinion should generally shield you from liability (although nothing can shield anyone from getting sued.)  Calling something an opinion is not necessarily an absolute shield, either.

Anyway, Bruin brothers and sisters, I advise caution and prudence.  Spend a few minutes looking at this issue on the internet.

All this was my opinion, in case anyone asks, or wants to sue me.