Here are some interesting links:

Ontario Beekeepers Association

Canadian Honey Council

Kortright Centre For Conservation

Royal Winter Fair

Jeff Harris with the USDA-ARS narrates The Life Cycle of the Honeybee and Varroa mite (you tube video)

http://video.google.ca/videoplay?docid=-7304562435786960616&q=varroa

 

http://www.agriculture.technomuses.ca/english/bees/the-beekeeper/hive-
inspection.php