There's a group called IMEDA the does Canadian immigration related seminars for lawyers and consultants. However, you don't have to be a lawyer or a consultant to go to one of their seminars or buy a recording. I saw this on their website, a recording of a seminar on Spousal sponsorships that's available for purchase. There's also one on IAD appeals. One of the presenters, Catherine Sas, is a pretty famous immigration lawyer. Don't know if anyone would think this is useful as it is professional development for consultants and lawyers and it's not free. Just thought I'd let you all know it's there. There's also a free weekly newsletter for updates on Canadian immigration.
http://www.imeda.ca/seminars/immigration-essentials-spousal-sponsorship
http://www.imeda.ca/seminars/immigration-essentials-spousal-sponsorship