With over 1.2 billion active users a month, Instagram may not be as big as Facebook but it is still the 7th most visited website in the world. What makes Instagram different from other platforms is you must post an image for every post, as it is primarily a photo and image sharing website that has adapted over the years. #Hashtags are a major part of Instagram and help you to find new followers, hashtags can also be followed, allowing any new posts with the same hashtag to appear in your feed.