Cyber Monday is a marketing term for e-commerce transactions
on the Monday after Thanksgiving in the United States. It was
created by retailers to encourage people to shop online.

The term was coined by Ellen Davis of the National Retail
Federation and Scott Silverman, and made its debut on
November 28, 2005, in a Shop.org press release entitled
"Cyber Monday Quickly Becoming One of the Biggest
Online Shopping Days of the Year.
(From Wikipedia)

Ellen Davis