http://www.techradar.com/news/amazon-is-celebrating-alexas-birthday-with-early-black-friday-deals

Today is the third anniversary of the release of the first Amazon Alexa device, the Amazon Echo, and Amazon is celebrating with a massive sale today only. 

Amazon isn't messing around, either. This is basically an early Black Friday sale as it's limited to today and one of the deals exceeds 50% in discounts. Since time is limited for this happy birthday sale, let's have a look, shall we?