According to the Shop.org/Bizrate Research 2005 eHoliday Mood Study, "77 percent of online retailers said that their sales increased substantially on the Monday after Thanksgiving, a trend that is driving serious online discounts and promotions on Cyber Monday this year (2005)".
The past Black Fridays saw far more deals for small appliances, cutlery, and kitchen gadgets on average than Cyber Monday. Cyber Monday is larger for fashion retail. On the past two Cyber Mondays, there were an average of 45% more clothing deals than on Black Friday. There were also 50% more shoe deals on Cyber Monday than on Black Friday.
Cyber Monday has become an international marketing term used by online retailers in Argentina, Canada, Chile, China, Colombia, Denmark, Germany, Ireland, Uganda, Japan, Portugal, Sweden and the United Kingdom.
Excerpt from: http://en.wikipedia.org/wiki/Cyber_Monday