Instagram launches in-app shopping discovery function as it pushes into social commerce

Shopping is coming to Instagram, with the image-sharing app announcing that it is testing a way to let users buy the items they see in brand's photos. 
Starting next week, the company will make it easier for Instagrammers to review, learn more about and click through to buy the items that interest them within its walls. 
The Facebook-owned site has teamed up with a number of brands for the initial launch, including Kate Spade, Coach and J Crew, which will be given t