Long-term graphs and maps - Arctic Sea Ice Graphs

For news, data and comments go to the Arctic Sea Ice Blog
For discussions go the Arctic Sea Ice Forum (ignore warning)

Compare NSIDC extent graphs with the Browser Image Spreadsheet Tool (BIST)
Searchable database for research documents: High North Research Documents
Maps of multi-year ice distribution: Arctic Ice Age
ACSYS Historical Ice Chart Archive: Quicklooks