There's lots of buzz in the marketing world regarding this year's holiday season, with headlines like "Will there be a Black Friday this year?" and "Black Friday is over." Forbes reports differing forecasts: Deloitte estimates a rise in holiday retail sales of 1-1.5 percent, while Forrester expects a decline of 2.5 percent for the full year. However, most forecasters agree that online holiday shopping will shatter previous growth. Forrester is predicting 18.5 percent growth in online retail sales and Deloitte is aiming even higher with a 25 to 35 percent growth in e-commerce sales during the holiday season.