The Canadian Association of Speech Language Pathologists and Audiologists (CASLPA) maintains a web site with lots of information and resources. Here you'll also find information on the various programs at Canadian universities, as well as how to get in contact with the student reps from the schools.  CASLPA also posts career ads and information about their conferences.  

OSLA, the Ontario Association for Speech Language Pathologists and Audiologists, has a web site with information on OSLA itself, as well as information on various disorders, setting up private practice, CEC workshops, and more.

The American Speech and Hearing Association (ASHA) also has a great web site with lots of information and links for speech-language pathologists working or planning on working in the United States.