http://www.nytimes.com/2014/10/16/fashion/your-instagram-picture-worth-a-thousand-ads.html?_r=0
I chose this article from the NY time because I think it is very important. It shows how brands use instagram to promote their products and how the "instagramers" gain from this and have free stuffs as Nike shoes or free trip. To gain those stuffs, they have to upload some pictures on instagram with that brands and the product that the brand want to show, to promote.
But to "earn" those products, instagramers must have a lot of followers who will see the pictures so the products. More they have followers, more they will be sought by the company.
I think this is why there are so much account specialized on such subject as fashion (men or women), car, fitness etc...
According to me, instagram will become bigger, there will be more and more advertising unlikely the advertising on TV.
