Facebook, Google, Pinterest and Twitter are among those looking to bridge mobile browsing and online purchasing with “buy” buttons that provide shoppers with one-click ordering for products offered by thousands of retailers. Despite increased mobile usage, Americans still order most of their products from desktop and laptop PCs. According to The New York Times, “This may seem like a minor inconvenience in a world where so much information is at our fingertips, but it is a big deal for tech companies whose multibillion-dollar advertising businesses are increasingly mobile yet remain highly tethered to the success of online shopping.”