Once we have looked at last week's test (!!) we will be starting to look (properly!) at human activity in cold environments tomorrow.
Tony Cassidy and Alan Parkinson (aka GeoBlogs) have been teaching the Pilot GCSE this year, and part of the course requires the study of an "Extreme Environment". Tony went for Antarctica, and Alan for Svalbard - both of them have been blogging for their students, and both blogs have some excellent links and resources (as well as other interesting geographical things) that will be useful to you...