Kent Hehr became the first mayoralty candidate to actually release his list of donors yesterday. This is something that other candidates said they would do, but never actually followed through.
I think that this type of transparency is critical. Couple this with Kents announcement of a lobbyist registry and you have an incredibly open and accountable mayor who will not be bought by developers behind closed doors!
http://kenthehr.ca/index.php?a=news&n=18
Edit: forgot the link!