Please help me!!!!

Hi, I am searching for my older biological brother Christopher John McWatty born September 19, 1979 at the Grace Hospital in Ottawa, Ontario and given up for adoption not too long after. I have placed my name on Adoption Disclosure records in Toronto and have posted messages on as many websites as possible, but it just does not seem like enough...I have already recieved the background info from Children's Aid but I need to find him. Is there any other way to find info on his public adoption? Are there such things as Private Investigators in Ontario as there is in the US, what else can I do? Please help me...any information would be a great help! I have to find him!!! Missing my brother, Trina