Explainer video company Easy Explain Video has created a list of what it believes to be the ten best explainer videos of 2013. And, thankfully, they've taken a look at all explainer videos, not just the ones they created. Likely, you haven't heard of any of the companies on the list except for McAfee. Then again, that's the whole point of an explainer video; to introduce and explain new concepts and companies. On the list are Quad, Kompoz, CrazyEgg, McAffee, VistaOneSolutions, Kurzgesagt, Heart Research Institute, Skin of Steel, Sundstedt and SilverRail.