Social media is changing rapidly. New companies, tools and apps appear all the time, with varying degrees of success. Many are now offshoots of or mergers with established platforms. The launch of Twitter’s new #music service and Facebook’s takeover of Instagram are examples. Generally, Facebook still dominates the sphere. The website accounts for 83% of the time people spend on social media websites in the United States, according to comScore. That said, other players are starting to carve out space. Tumblr and Pinterest – two platforms that encourage image sharing – make up almost 8% of online social networking. This reflects the growing interest in visual media, a trend underlined by the global boom in online video.