Alexa is Amazon’s cloud-based voice service available on over 100 million devices. Alexa gets her information from a variety of trusted sources such as IMDb, Accuweather, Yelp, Answers.com, Wikipedia and many others. The source used depends on the question asked and whether or not you are engaged with a third-party skill. In addition, third- party skills have their own data sources. For example Uber, Dominos and other skills pull data from their own proprietary sources. Alexa skills are like apps. You can enable and disable skills, using the Alexa app or a web browser, in the same way that you install and uninstall apps on your smart phone or tablet. Skills are voice-driven Alexa capabilities. You can add Alexa skills to your Echo to bring products and services to life. You can view available skills and enable or disable them using your Alexa app..