The Hopeless Gamer blog has a list of Black Friday sales and discounts.
From their announcement:
Don’t want to be in line at 11:59 on Thanksgiving to get some cheap jeans and t-shirts? We don’t blame you. Come check out our guide to where you can find online gaming deals to help celebrate this blackest of all consumer holidays – Black Friday. Don’t see your Black Friday deal in our post? Please let us know in our comments section.