If you're planning to be hunting for bargains this year then once again, there is an app for that! (Don't you love that line?). Dealnews just released the second version of its Black Friday app and you might want to consider it.
It provides you with both "official" and "leaked" ads so you'll be the first one to know about the deals, then it lets you add the items you're interested in into a shopping list. You can look for deals by category or retailers and it lets you confirm them on safari.
Furthermore the app won't die after Black Friday as it'll be updated for Cyber Monday or After Christmas Sales.