Bitcoin. Twerking. NSA. Cronuts. Google Glass. 2013 was, by all accounts, another groundbreaking year -- and it was no less for SlideShare and the world of presentations, too. We took a look back at the top trends on SlideShare this year. Share your year in review, too, and tag your SlideShare #zeitgeist2013. Read blog post: http://blog.slideshare.net/2013/12/09/zeitgeist2013-share-your-year-in-review/index.html View Zeitgeists: http://www.slideshare.net/tag/zeitgeist2013