It's a long article about Asian incalls in BC, which they call "microbrothels". It not only mentions the Perb board, but actually has quotes from reviews and notes their Perb IDs.
http://www.canada.com/vancouver/van....html?id=b5ed7167-738a-4227-bf25-588921dd9b7b
http://www.canada.com/vancouver/van....html?id=b5ed7167-738a-4227-bf25-588921dd9b7b