cool site:
http://www.game-sales-charts.com/cms/index.php?option=com_frontpage&Itemid=1
some neat info on there, like this chart:
http://www.game-sales-charts.com/cms/index.php?option=com_dbquery&Itemid=33&task=ExecuteQuery&qid=38
interesting to see it all at a glance ; )