Isn't Twitter a waste of time? Isn't Facebook for the kids?
It's true that Twitter and Facebook started out with very 'non-business' objectives. The founder of Twitter actually did invent it so you could tell everyone you were going to the shop to get some milk; and anyone who has seen the movie The Social Network knows about the very lowbrow origins of Facebook.
Other social media platforms include LinkedIn, Google+, YouTube, Pinterest, Instagram, Snapchat, Foursquare, Quora, Tumblr, Vine, Flickr and MySpace, among others.
In recent years savvy marketers and business owners have worked out how to use social media VERY effectively for communicating with the market place, in a new way.
Traditional marketing, like advertising, is a monologue. A one-way conversation, coming from the advertiser. There's no interaction in a TV or newspaper ad.