On today's episode, in our "Retail Me This, Retail Me That" segment, we discuss the sizes of different digital marketplaces, what their unique selling points are, and why smaller retailers are building out their own. Then for "Red-Hot Retail," our analysts give us four spicy predictions about the future of digital marketplaces. Join our analyst Sara Lebow as she hosts forecasting analyst Whitney Birdsall and analyst Sky Canaves.