Instagram is used to share information regarding any new blog that the blogger has posted. Mentioning the link to the blog post can directly take the followers to the post. This helps to gain lot of readers for your blog posts otherwise it is very difficult to find a specific blog using a browser.
Nowadays, a lot of people who have their own businesses in the form of a real time store are also selling their items online through Instagram. This is helping them to increase their sales. It is helping even very small businesses which do not have their own concrete stores.