Canadians : because of the distance, we can't provide some of the immediate things that are needed, but these people are going to need to be sustained in the weeks and months ahead, and that's going to take money.
To get your tax receipt you should donate through the Canadian Red Cross
www.redcross.ca/
Also, the Canadian Mennonite Central committee has committed to send 600 Disaster service volunteers to help with the clean up and rebuilding. This is a very reputable organization. To donate or be involved:
http://www.mds.mennonite.net/Home
If you are Roman Catholic the Catholic Charities of Canada will be collecting donations and forwarding them to the Catholic Charities USA, who will be working directly with families to help in any way they can. Again, this is so you can obtain a Canadian income tax receipt. Contact your local Roman Catholic Parish. I understand there will be envelopes distributed in the parishes next week.
Americans: I learned today that there are long waiting times to get through to the American Red Cross because of the sheer volume of people trying to make online donations. They have partnered with Yahoo so you can make donations to the RedCross through them.