With Best Buy and Target promising price-match guarantees against online competition, and Amazon.com (AMZN +0.12%) now collecting sales taxes in more states, "showrooming" might officially be over.
At the same time, eBay (EBAY +0.07%) and Wal-Mart (WMT +0.36%) are testing out innovative new delivery options in their fight against Amazon. The Motley Fool's Alison Southwick asks contributor Demitrios Kalogeropoulos for his thoughts on the brewing same-day-delivery battle, and on which companies seem best positioned to deliver the goods.





