Black Friday 2010

Advertising tip sites
Some websites offer information about day after thanksgiving specials up to a month in advance. The text listings of items and prices are usually accompanied by pictures of the actual ad circulars. These are either leaked by insiders or intentionally released by large retailers to give consumers insight and allow them time to plan.
In recent years, some retailers (including Wal-Mart Stores, Inc., Target Corporation, OfficeMax, Big Lots, and Staples, Inc.) have claimed that the advertisements they send in advance of Black Friday and the prices included in those advertisements are copyrighted and are trade secrets.