If you ski, skate, sail, "shanty-up" -- or just enjoy reflecting on our frozen world -- here is a random assortment of ice and snow-related resources:
Ice fishing recommended reading list from the Water Library
http://aqua.wisc.edu/waterlibrary/Default.aspx?tabid=160
"Ice Safety" from the Minnesota Department of Natural Resources
http://www.dnr.state.mn.us/safety/ice/index.html"
Guide to snowflakes
http://www.its.caltech.edu/~atomic/snowcrystals/class/class.htm
"Great lakes ice rhythms" by Jennifer Yauck of the Great Lakes WATER Institute
http://bayviewcompass.com/archives/2708