I would definitely suggest emailing or even calling schools to find out why you weren't accepted if you had a very strong application. I heard that some people got accepted on the spot when they called to inquire about rejections/wait-list positions because things had been missed or overlooked initially. It's your future, nobody is going to fight for you except yourself!
I also received an email from UofA today and will be accepting. I was put on their wait list last year so I am extremely relieved. Best of luck to those of you still waiting, don't give up!