November’s arrival means the online holiday shopping season is upon us. According to comScore, this holiday season looks to be a positive one with strong year-over-year growth rates. For this year, comScore has identified four key trends: social commerce, smartphones, showrooming and sit-back shopping. These trends mean winners will include established online retail brands like Amazon, eBay and Walmart. Traditional brick-and-mortar retailers, on the other hand, will have difficulties, assuming they haven’t kept up with the shift in platform usage. (comScore)