Blackberry PR execs frequently get knickers in a twist -

Blackberry's internal communications team is just a little bit tetchy. 

According to a person very familiar with the matter, they will immediately blacklist a magazine, blog or website for offences as severe as being a little bit critical. 

When asked if it was really that bad, our source took a deep breath and simply nodded. 

For example, a story which did not fawn over the PlayBook was sent up the chain. Furious executives bayed for blood and punished the blog in question with a blacklisting. Like they do with others. The problem with that is when they realise no one is writing about them anymore.

No doubt the whingeing executives would have been busy as the device was not exactly well received in the tech press. 

Apparently, RIM monitors the press very, very closely.

Executives hold temper tantrums, we heard, and demand blacklisting all corners of the web which refuse to gush over its products.

Who is behind this? Is it the two-headed dragon of Lazaridis and The Other One which is slaying itself? Or do jobs at RIM require a personality disorder as part of the application process?

We'll never know, probably, as this just might get us blacklisted (again).