Here are a few links, not all Hamilton though. Not sure about Steelfet, from the previous posts, it may be not running currently. But these links are newslists that will at least give you a place to start.
London has a great munch group, but a bit of a travel for you if you are in Hamilton
http://groups.yahoo.com/group/Bdsm-London/
http://groups.yahoo.com/group/steelfet/
on irc.bondage.com there is a group of real lifers in a room called
toronto-bdsm
http://groups.yahoo.com/group/Torontospank/
http://groups.yahoo.com/group/SpankingCanada/
Good Luck to you
Q