In December 2014 Instagram announced that it has been seeing upwards of 300 million active monthly users – overtaking Twitter's 284 million active users. Instagram grew exponentially in 2014, seeing a 50% increase in just nine months.

Twitter has partnered with American music chart company Billboard to create two real-time music charts based on social media mentions. Though the music industry must adapt to survive, can a social media chart really represent an artist or song's popularity authentically?

CouchCachet allows users to pretend that they attended cool parties, bars and restaurants on social networking sites. The app automatically checks the user into events on Foursquare and posts images of the night such as an indie rock band.

The Apple App Store houses over one million apps. Despite once trying to do everything, apps are now being split into single purpose platforms. But how do people actually use them? And which is more useful – the Swiss Army knife approach or a tailored, single purpose app?