The power, or otherwise, of social media is a controversial subject here. Here's an example where social media have taken a two minute video from zero views to 1.3 million in four days. As the person who made the video said, "Everyone’s been tweeting".

http://www.quillandquire.com/blog/in...-joy-of-books/

Regardless of one's views on social media, I suspect that you'll enjoy the video (best viewed enlarged).